Annona Chalk
id:
annona-chalk-304-18599183
title:
Annona Chalk
text:
The Annona Chalk is a geologic formation in Arkansas, Texas, Louisiana, and Oklahoma. It preserves fossils dating back to the Cretaceous period. The formation is a hard, thick-bedded to massive, slightly fossiliferous chalk. It weathers white, but is blue-gray when freshly exposed. The unit is commercially mined for cement. Fossils in the Annona Chalk include coelenterates, echinoderms, annelids, bivalves, gastropods, cephalopods, and some vertebrate traces. The beds range in thickness, up to ov
brand slug:
wiki
category slug:
encyclopedia
description:
Geological formation in the United States
original url:
https://en.wikipedia.org/wiki/Annona_Chalk
date created:
date modified:
2024-02-14T12:26:42Z
main entity:
{"identifier":"Q17512201","url":"https://www.wikidata.org/entity/Q17512201"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/a/ad/Bulletin_429_Plate_XVI_A_Annona_Chalk.jpg","width":1300,"height":1081}
fields total:
13
integrity:
15