Tecomazuchil Formation | |
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Stratigraphic range: | |
Type | Geological Formation |
Underlies | Chimeco Limestone |
Overlies | Acatlán Complex |
Lithology | |
Primary | Silty Sandstone [1] |
Location | |
Region | Puebla Province |
Country | Mexico |
Type section | |
Named by |
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The Tecomazuchil Formation is a geologic formation in Oaxaca, Mexico. It is made up of "a basal conglomerate 135 m thick and predominantly composed of quartz and metamorphic rock fragments, overlain by about 600 m of interbedded tan to red conglomerates, sandstones, and siltstones. The Tecomazuchil Formation overlies unconformably the Acatlán Complex and has been assigned a Middle Jurassic age, though it could represent at least part of the Oxfordian." [2] Fossil Bennettitales have been found in the formation. [3]