एक संक्षिप्त खडक प्रामुख्याने मायक्रोक्रिस्टलाइन क्वार्ट्जचा बनलेला आहे, ,

Noun:

चुना,

cherts's Usage Examples:

The cherts may themselves contain fossils of ancient animals.

the early Bronze Age (~3200 BCE) to the present, with a few flints and cherts from even earlier.

Holocarpic chytrid remains were found in cherts from Combres in central France that date back to the late Visean.

Oregon and was first described from a series of isolated fossil nuts in cherts.

Precambrian cherts are notable for the presence of fossil cyanobacteria.

marine turbidites and cherts to shallowing coastal marine sediments during the Miocene and into the Pliocene.

Utah is full of highly polished red and black cherts, which may partly represent gastroliths.

Well-preserved fossils have been found in the 400-million-year-old Rhynie cherts of Scotland, and 305-million-year-old rocks in France.

The cherts of the Gunflint (the Gunflint Chert) are noted for containing Precambrian.

from diatom-rich plankton, became diatomites, porcelainites, and banded cherts.

sedimentary rocks are commonly accompanied by or interbedded with shales, cherts, limestone, dolomites and sometimes sandstone.

Analysis of oxygen isotopes in Mesoarchean cherts led to an oceanic temperature estimate around 55-85 °C, while other studies.

Chert can have a variety of colours, but microfossils are typically found in black cherts, as the dark color can indicate.