The 4 Main Rocks of San Francisco скачать в хорошем качестве

The 4 Main Rocks of San Francisco

Subscribe to Poopy Archaeology! https://tinyurl.com/4jxemehx Learn to identify the four main rocks in San Francisco: chert, greenstone, graywacke, and serpentinite! Underwater eruption credit: Javier Rodríguez Jauregui; video:    • Lava under the ocean.   Turbidity experiment credit: Teijen1; video:    • Turbidity Currents   Sources: Brodo, I. M. (1973). Substrate ecology. In The lichens (pp. 401-441). Academic Press. Greene, H. G., S. Y. Johnson, M. W. Manson, S. R. Hartwell, C. A. Endris, T. R. Bruns, G. R. Cochrane, and S. A. Cochran. "Offshore and onshore geology and geomorphology, offshore of San Francisco map area, California, sheet 10." California State Waters Map Series—Offshore of San Francisco, California 1068 (2015): 39.