| 词条 | Santa Cruz Mudstone |
| 释义 |
| name = Santa Cruz Mudstone | image = | caption = | type = Formation | age = Tortonian-Messinian | period = Tortonian | prilithology = Siliceous organic mudstone | otherlithology = | namedfor = Santa Cruz County | namedby = | region = {{flag|California}} | country = {{USA}} | coordinates = {{coord|37.1|N|122.3|W|display=inline,title}} | paleocoordinates = {{coord|36.6|N|119.8|W|display=inline}} | unitof = | subunits = | underlies = Purisima Formation | overlies = Santa Margarita Sandstone | thickness = >{{convert|2700|m|ft|abbr=on}} | extent = Santa Cruz Mountains | area = | map = {{Location map+ | California | relief = 1 | width = 250 | float = center | places = | lat_deg = 37.1 | lon_deg = -122.3 | mark = Yellow ffff00 pog.svg | marksize = 12 }} | map_caption = }} The Santa Cruz Mudstone is a geologic formation in California. The siliceous organic mudstones of the formation were deposited in deep water and fluvial environments. The formation overlies the Santa Margarita Sandstone and is overlain by the Purisima Formation. The Santa Cruz Mudstone was formerly considered part of the Monterey Formation. The formation preserves bivalve and echinoid fossils as well as vertebrates of Parabalaenoptera baulinensis and Otodus megalodon. The formation dates back to the Late Miocene (Tortonian to Messinian) period.[1][2][3] See also{{Portal|Earth sciences|California|Paleontology|Neogene|Prehistory of North America}}
References1. ^Balinas Point at Fossilworks.org 2. ^Bolinas Bay at Fossilworks.org 3. ^Waddell Creek at Fossilworks.org Further reading
8 : Geologic formations of California|Neogene California|Messinian|Tortonian|Mudstone formations|Deep marine deposits|Fluvial deposits|Paleontology in California |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。