Examples of 'chert' in a sentence
Meaning of "chert"
Chert is a hard, dark, fine-grained sedimentary rock composed of microcrystalline quartz. It is commonly used for tool making and as a building material
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- Massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or other flint-like mineral.
- A flint-like tool made from chert.
How to use "chert" in a sentence
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chert
Radiolarian chert is found in the central section.
They are always made from local chert.
Nodules of chert are present in some of the limestones.
He is picking up a piece of chert and a metal lime.
This chert is present throughout most of the county.
Thousands of pieces of chert were found at the site.
Majority of the waste flakes are made from chert.
It is a variety of chert and is often referred to as such.
These include jaspilite and chert.
Some of the chert clasts actually contained fossils.
They are characterized by bands of iron compounds and chert.
Thick beds of chert occur in deep marine deposits.
Both formations consist mainly of shale and chert.
It may be derived from sandstone or chert by regional metamorphism.
This is the most abundantly found variety of chert.
See also
We hit a chert carbonate formation.
Examples include flint and chert.
At least one zone of chert nodules occurs in the limestone.
The red rock member is hematite stained chert.
Several different kinds of chert were available in the area.
And some of those are from local chert.
It is often an impure variety of chert containing clay and calcareous matter.
Other cutting tools also were made of obsidian or chert.
Chert also occurs in diatomaceous deposits and is known as diatomaceous chert.
These tools are predominantly bifacially worked from local chert.
The chert is very brittle and intensely fractured from folding.
This is a magnetite or hematite chert.
The chert units are notable for their very thick beds.
More acidic soils are found only on limestone with chert.
Chert the barbarian.
To their right are a ground chert burin and a tip fluted triangular point.
Chert is a stone.
Most of the hilltops in this region are capped with this chert gravel.
Radiolarite is a variety of chert formed as primary deposits and containing radiolarian microfossils.
The species was first described from specimens of silicified infructescences in blocks of chert.
Pinkish chert bands are found in the lowermost mudstone deposits of this biozone.
Merchants used local materials such as chalcedony instead of chert for stone blades.
A few flint points and a chert pecking hammer have been picked up in this field.
Chert or flint nodules in limestone can often take forms that resemble fossils.
These magnesites are often cryptocrystalline and contain silica in the form of opal or chert.
Flint and chert are the most commonly knapped materials and are compact cryptocrystalline quartz.
The trail surface is partially granitic sand and partly chert a kind of gravel.
Chert glades are a habitat which only exists in southern Missouri.
The artifacts recovered included a great many fire cracked rocks and chert flakes.
The coastal region to the west yielded chert and limestone suitable for making stone tools.
The most common stone types that were used for stone clubs were chert and flint.
Two of their sources for chert have been discovered in the Témiscouata area.
Near the summit you will find folded layers of very hard rock called radiolarian chert.
Nematoplexus rhyniensis is a fossil known from the Rhynie chert assigned to the nematophytes.
The Castlemainian stage may be represented by nongraptolitic massive bedded chert.
