callanbentley
Public Images
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Massanutten sandstone slab with trace fossils (annotations only)
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Fossil example 2 in outcrop from Unit F
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Cross beds in komatiitic ash deposits
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Sample unconformity for testing
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Veach Gap Anticline 2
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Parallel Roads of Glen Roy, Scotland
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Fossil example 3, sample 1, from Unit D
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LiDAR map of glaciated terrain in Scandinavia
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Tiny dropstone in Rockwell Diamictite
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Unknown rock for lab exam
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Relative dating example 18
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Relative dating example 9
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Disconformity between Tensleep Fm and Goose Egg Fm
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Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
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Fossil example 1 from Unit C
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Structure 10
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Geologic map of North America
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Structure 16
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Geologic map of Pennsylvania
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Structure 4
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Structure 2
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Structure 8
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Structure 21
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Dismembered, Folded Sandstone ("Ploudin") from Corridor H, WV, Plane Polars
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Relative dating outcrop 1
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Relative dating example 4
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Topographic maps for the glaciers lab
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Relative dating example 10
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Blue Ridge and Massanutten Mountain from Little Crease Mountain
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Mudcracks at Höfn, Iceland
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Primary sedimentary structure for quiz
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PLATE BOUNDARY MAP
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Structure 18
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Topographic maps for the topographic maps lab
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Fossil example 2 from Unit G
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Relative dating example 28
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Geologic map of the Lemmon area, North and South Dakota
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Geologic map of the Grand Canyon, Arizona
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Relative dating example 25
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Graded bedding and dessication cracks in Tonoloway Formation limestone
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"This Dynamic Planet"
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Geologic map of Hawaii
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Geological map of New Mexico
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Unknown structure for students to identify
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Fossil example 1 from Unit B
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Highland County, VA Mafic Intrusion
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Chesapecten nefrens
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Fossil example 1 (two samples) from Unit F
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South Fort Valley Antiform
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Map for students to interpret
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Trilobite, Devonian of Morocco
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Spechty Kopf Diamictite, Crossed Polars
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Sedimentary deposit for students to identify and intepret
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Mahantango Formation showing trace fossils, Fort Valley Road, Virginia
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Fossils in the Martinsburg Formation
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Banded iron formation, Barberton Greenstone Belt, South Africa
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Fossil example 1, outcrop 2, from Unit H
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Kaap Valley Pluton exposed along Queens River, Barberton Greenstone Belt, South Africa
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Seismicity of the Earth 1900–2018
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Relative dating example 27
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Cleavage refraction in Konnarock Formation
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Fossil example 1, sample 3, from Unit G
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Geologic map of the Sun River Canyon area, Montana
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Massanutten Sandstone Bedding Plane Surface - Woodstock Tower, VA
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Lab exam unknown
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Sample 3
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Diamictite
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Bedrock geologic map of part of the northern disturbed belt, Lewis and Clark, Teton, Pondera, Glacier, Flathead, Cascade, and Powell Counties, Montana
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Crossbedded Fine Sandstone
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Structure 9
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Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
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Relative dating example 17
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Relative dating example 26
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Map 2
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Massanutten sandstone slab with trace fossils
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Channels in the Hampshire Formation
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Ammonite
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Ostracodes in Tonoloway Formation Limestone
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Strained trilobite
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Structure 13
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Fossil example 2, outcrop 1, from Unit D
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Buzzard Rocks
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Gastropod-bearing agate ("Turitella agate") of the Green River Formation, Wyoming
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Angular Unconformity, west of El Paso, Texas
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Tonoloway Formation, folded as part of Patterson Creek Mountain Anticline, Corridor H, West Virginia
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Relative dating example 15
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Unknown rock for students to identify
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Stutfield Glacier, Jasper National Park, Alberta, Canada
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Blue Hole, Passage Creek, George Washington National Forest, Virginia
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Harpers Formation, Harpers Ferry, West Virginia
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Sedimentary rock 6
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An outcrop for Professor Barth's students to examine and interpret
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Relative dating example 24
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Relative dating sample 2
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Rock sample 2 (Glaciers lab)
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Precambrian-Aged Castle Danger Amygdaloidal Basalt, Crossed Polars
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Graded bedding and dessication cracks in Tonoloway Formation limestone
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Lower Martinsburg Formation outcrop at Funk Road and Route 11, south of Strasburg, Virginia
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Relative dating example 28
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Graded bed in Martinsburg Formation
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Komatiite, Barberton Greenstone Belt
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Massanutten Sandstone
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Outcrop for students to identify and interpret.
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Quiz cobble
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Way-up structure for quiz
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Structure 14
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Geologic map of Williamsburg, VA, and surrounding areas
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Blueschist
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Weasel Collar Glacier, Glacier National Park, Montana
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Igneous rock I.5
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Topo Maps for Topo Maps Lab
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Structure 28
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Structure 27
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Structure 12
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Unknown outcrop for Lab exam
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Beartooth Highway
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Latest Devonian Spechty Kopf formation roadcut on Corridor H, West Virginia
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Conophyton
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Outcrop at the intersection of Fort Valley Road and Ramsey Road, Fort Valley, Virginia
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Massanutten sandstone slab with trace fossils
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Carbonized fossil crane fly (Diptera, Tipulidae)
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Relative dating example 35
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Cribratina
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Way-up structure unknown for quiz
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Torridonian Group, North-West Highlands, Scotland
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Stromatolites in Helena (Siyeh) Formation Limstone from Alberta, Canada
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Helen Lake Stromatolite 4
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Convolute Bedding in Millboro Formation Sandstone
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Chancellor Group slate, Yoho National Park, British Columbia, Canada
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Outcrop for students to evaluate
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Geologic map of the Williamsville, Virginia quadrangle
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Structure 19
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Relative dating example 40
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Fossil beetle
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Spechty Kopf Diamictite, Crossed Polars
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Buck Reef Chert
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Relative dating example 3
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Structure 6
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Rock observation, description, and interpretation: Sample 3
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Relative dating example 31
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Martinsburg Formation, Millner Road and Bethel Road, Shenandoah County, Virginia
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Structure 26
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Precambrian-Aged Castle Danger Amygdaloidal Basalt, Plane Polars
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Relative dating example 32
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Relative dating example 16
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Mystery fossil for students to identify
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Veach Gap Anticline 1
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Geological contact for students to identify and interpret
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S-C fabric in sheared granodiorite
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Relative dating example 39
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Structure 11
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Little A Glacier and Boundary Glacier, near Icefield Centre, Icefields Parkway, Jasper National Park, Alberta
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Mineral unknown
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Graptolite fossils in the Martinsburg Formation
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Sample 4
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Ooids
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Striations in Eldon Formation, exposed near Athabasca Glacier.
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Microbially-induced sedimentary structures, sandstone, Barberton Greenstone Belt, South Africa
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Normal Fault in Chalk (Detail)
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Structure 24
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Mystery fossil for students to identify and interpret
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Archean rock outcrop 3
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Relative dating example 33
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Unknown rock for lab practical
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Fossil example 1 in sediment sample from Unit E
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Tennessee Valley Beach Sediments
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Ammonite Showing Ammonitic Sutures
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Cross-bedding in Massanutten Sandstone
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Unknown for analysis
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Archean rock sample 2
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Sample unconformity for quiz
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Structure 30
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Contact between New Market Formation (lower unit) and overlying Lincolnshire Formation (upper unit), near Staunton, Virginia
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EARTHQUAKES
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Outcrop for students to interpret
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Fossil Snails in Reynolds Limestone
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Knightia, fossil fish from the Eocene
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TOPOGRAPHY
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Chesapecten jeffersonius
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Anticline in Veach Gap
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Sedimentary deposit for students to interpret
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Spechty Kopf Diamictite, West Virginia
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Anticline in Veach Gap
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Trilobite: Elrathia kingi
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Bow Falls Tool Marks
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Relative dating example 11
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Nautiloid in Mahantango Formation
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Relative dating example 14
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Helderberg limestones, Fort Valley Road, Virginia
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SharkBay, Western Australia
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Conococheague Formation exposed near Mulberry Run, Virginia
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Mystery fossil for students to identify and interpret
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Crane fly
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Graded bed in Martinsburg Formation
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Pyritized plant tissue from the Spechty Kopf Diamictite
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Skolithos-bearing block of quartz sandstone (Antietam Formation)
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Leesburg Conglomerate
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Structure 3
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Mystery fossil for students to identify
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Fossil example 1, sample 2, from Unit G
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Zoophycos
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Martinsburg Formation, Millner Road (near Deer Rapids Road), Shenandoah County, Virginia
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Relative dating example 21
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Igneous outcrop I.11
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Graptolites
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Relative dating example 36
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Travertine-Tumbling Run
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Accretionary lapilli, Msauli Chert, Barberton Greenstone Belt, South Africa
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Rock observation, description, and interpretation: Sample 1
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Carbla Beach, Shark Bay, Western Australia
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Fossil example 1 from Unit D
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"Baker outcrop"
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Unknown sample for lab exam
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Dismembered, Folded Sandstone ("Ploudin") from Corridor H, WV, Crossed Polars
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Location 1, Glacier National Park, Montana
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Massanutten sandstone slab with trace fossils (annotations only)
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Outcrop for students to identify and interpret
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Location 2, Glacier National Park, Montana
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Igneous rock I.6
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Fossil example 1 in outcrop from Unit E
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Fossil example 2, outcrop 2, from Unit D
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"Baker outcrop," upper portion
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Zoophycos trace fossils in Mahantango Formation
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Structure 22
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Mineral unknown "R"
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Structure 17
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Outcrop for students to evaluate
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Mineral in a metamorphic rock
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Mahantango Formation
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Structure 23
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Fluvial and lahar deposits at Cold Springs, California
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Rock observation, description, and interpretation: Sample 2
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Neoarchean Pillow Basalts (by Ron Schott)
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Structure 7
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Dismembered, Folded Sandstone ("Ploudin") from Corridor H, WV, Plane Polars
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Mudchip rip-up clasts in argillite of varying oxidation states and quartzite of the Grinnell Formation
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Mystery location
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Mistaken Point
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Mahantango Formation Oolite with Intraclast
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Relative dating example 29
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Blueschist-grade folded metachert+shale
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Grudaidh Formation (Durness Group) w/ vogesite sills and faults
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Geologic map of Utah
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Relative dating example 7
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Relative dating example 8
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Relative dating example 22
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Geologic map of Townsend, Montana
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Dewatering structure (?)
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Relative dating example 13
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Till
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Eurypterid
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Soudan Banded Iron Formation by A. Hochstaedter
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Seismicity of the Earth 1900–2018
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Topographic maps lab maps
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Fossil example 1, outcrop 1, from Unit H
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Witvlei Group Stromatolites
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Archean rock sample 1
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Rock sample 1 (Glaciers lab)
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Looking south from Waterton
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unknown structure for students to identify
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Sample to evaluate: sedimentary or metamorphic?
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Barite horizon, Mapepe Formation of the Fig Tree Group
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Spechty Kopf Diamictite, Plane Polars
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Relative dating example 6
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Relative dating example 34
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Peyto Lake, Banff National Park, Alberta, Canada
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Igneous rock I.4
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Mudcracks
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Duplex structure east of Swift Dam, Montana
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Hampshire Formation
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Geologic map of Glacier National Park, Montana (Whipple, 1992)
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Geologic map of the Roberts Mountain quadrangle, Montana
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Mylonite, North-West Highlands, Scotland
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Unknown sample for students to identify and evaluate
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Relative dating example 37
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Structure 1
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Cruziana
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Glacier on Mt. Stephen
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Mystery fossil for students to identify
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Giant's Causeway, Northern Ireland
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Archean rock outcrop 4
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Parallel Roads of Glen Roy, Scotland
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Primary sedimentary structure for quiz
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Structure 20
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Relative dating example 19
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Pteridinium
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Conococheague Formation at Mulberry Run, showing stromatolites
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Relative dating example 23
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Microbially-induced sedimentary structures, sandstone, Barberton Greenstone Belt, South Africa
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Athabasca Glacier
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Structure 5
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Fossil example 3, outcrop 1, from Unit D
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Igneous rock I.8
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Rising Wolf Mountain, Two Medicine Valley, Glacier National Park, Montana
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Unknown rock sample
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Hallett Cove, South Australia: Permian glacial striations
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Sedimentary deposit for students to interpret
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Sample to evaluate: sedimentary or metamorphic?
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Lava pillows
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Unknown rock for lab exam
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Laminated Spechty Kopf Diamictite
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Lab exam unknown
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Relative dating example 30
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Shell-rich Horizon in Mahantango Formation
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Example outcrop
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Igneous outcrop I.10
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Deformed Lynchburg Group, Riveredge Park, Madison Heights, VA
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Microbially induced sedimentary structures, Barberton
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Chancellor Group slate, Yoho National Park, British Columbia, Canada
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Graded bed in Martinsburg Formation
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Structure 29
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Stromatolites, Helena Formation, near Crypt Lake, Waterton Lakes National Park, Alberta
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Canyon Diablo meteorite
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Test geologic map
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Diamictite from Storeelv Formation, Greenland
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AGE OF THE SEAFLOOR
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Topographic maps for the Running Water lab
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Turitella gastropod fossils in limestone of the Buda Formation, Cristo Rey, Texas
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Rock unknown for lab exam
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Igneous rock I.3
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Tumbling Run
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Helderberg limestone
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Trezona Formation Stromatolites
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Mystery fossil for students to identify
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Deep Creek Valley
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Fossil example 2 from Unit A
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Beartooth Highway
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Sample 1
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Sample for students to evaluate
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Fossil example 3 from Unit F
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Geologic map of White Gate quadrangle, Virginia
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Massanutten Formation
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Outcrop for students to interpret
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Fossil example 1 from Unit A
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S2 meteorite impact tsunami deposit, Barberton Greenstone Belt
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Sample 5
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Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
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Geologic map of Arkansas
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Structure 15
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Dropstone in Ghaub Formation, Namibia
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Geologic map of Arizona
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The Kings Squash (Detail)
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Massanutten Sandstone
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Relative dating example 12
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Warm-up 1
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Relative dating example 20
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Fusulinids
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Spechty Kopf Diamictite, Plane Polars
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Outcrop for students to evaluate.
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S3 spherulite, Fig Tree Group, Barberton Greenstone Belt
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Ghaub Formation diamictite with Snowball Earth glacial dropstones
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Fossil example 1, sample 1, from Unit G
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Lava Lake, Montana
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Sulphur Springs quadrangle, Florida topographic map
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Looking south from Waterton
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Structure 25
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Dismembered, Folded Sandstone ("Ploudin") from Corridor H, WV, Crossed Polars
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Geologic Map of Leadville, CO and vicinity
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Red Hole, Passage Creek, George Washington National Forest, Virginia (#1 of 2)
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Relative dating example 5
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Trimmers Rock, PA: Bouma sequences
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Buzzard Rocks
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Test question 22
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Mahantango Formation, showing Zoophycos trace fossils
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Mahantango Formation, showing carbonate nodules
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VOLCANOLOGY
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Mystery contact to interpret