By: magic-gigapans
Image: Robin Rohrback, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 12 May 2020
Last Updated: 22 May 2020

1.86 gigapixels
60,084 x 30,900 pixels
200.3 in X 103.0 in at 300dpi

Ocean Beach in San Francisco showcases some of the jumbled mess that is the Franciscan Complex. Here you can see graywacke abutting tafoni-weathered sandstone. Behind this wall is a small sea cave in which, until storms deposited about four feet of sediment in two years, the contact between the graywacke and underlying basalt pillows was visible. Please excuse any stitching errors and unduly blurry areas. It was unbelievably windy that afternoon.