Sespe Formation (original) (raw)

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The Sespe Formation is a widespread fossiliferous sedimentary geologic unit in southern and south central California in the United States. It is of nonmarine origin, consisting predominantly of sandstones and conglomerates laid down in a riverine, shoreline, and floodplain environment between the upper Eocene Epoch (around 40 million years ago) through the lower Miocene. It is often distinctive in appearance, with its sandstones weathering to reddish-brown, maroon, pinkish-gray, tan, and green. Since many of its sandstones are more resistant to erosion than many other regional sedimentary units it often forms dramatic outcrops and ridgelines in many local mountain ranges.

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dbo:abstract The Sespe Formation is a widespread fossiliferous sedimentary geologic unit in southern and south central California in the United States. It is of nonmarine origin, consisting predominantly of sandstones and conglomerates laid down in a riverine, shoreline, and floodplain environment between the upper Eocene Epoch (around 40 million years ago) through the lower Miocene. It is often distinctive in appearance, with its sandstones weathering to reddish-brown, maroon, pinkish-gray, tan, and green. Since many of its sandstones are more resistant to erosion than many other regional sedimentary units it often forms dramatic outcrops and ridgelines in many local mountain ranges. (en)
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dbp:age dbr:Eocene dbr:Miocene
dbp:caption Weathered, poorly sorted conglomerate from the lower member of the Sespe Formation, Santa Ynez Mountains, California. The clasts range in size from boulders to small pebbles. (en)
dbp:name Sespe Formation (en)
dbp:namedby Watts ; redefined by Kew (en)
dbp:namedfor dbr:Sespe_Creek
dbp:otherlithology Mudstone, occasional shale (en)
dbp:overlies dbr:Coldwater_Formation
dbp:period Oligocene (en)
dbp:prilithology dbr:Conglomerate_(geology) dbr:Sandstone
dbp:region Southern and south central California (en)
dbp:type sedimentary (en)
dbp:underlies dbr:Monterey_Formation dbr:Vaqueros_Formation
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dct:subject dbc:Geologic_formations_of_California dbc:Topatopa_Mountains dbc:Geology_of_Ventura_County,_California dbc:Oligocene_Series_of_North_America dbc:Eocene_Series_of_North_America dbc:Natural_history_of_Ventura_County,_California dbc:Paleogene_California
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rdfs:comment The Sespe Formation is a widespread fossiliferous sedimentary geologic unit in southern and south central California in the United States. It is of nonmarine origin, consisting predominantly of sandstones and conglomerates laid down in a riverine, shoreline, and floodplain environment between the upper Eocene Epoch (around 40 million years ago) through the lower Miocene. It is often distinctive in appearance, with its sandstones weathering to reddish-brown, maroon, pinkish-gray, tan, and green. Since many of its sandstones are more resistant to erosion than many other regional sedimentary units it often forms dramatic outcrops and ridgelines in many local mountain ranges. (en)
rdfs:label Sespe Formation (en)
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is foaf:primaryTopic of wikipedia-en:Sespe_Formation