I just know how to love chert and identify good opal. From Wordnik.com. [Even in a little thing] Reference
Yet another link regarding Gunflint chert & stromatolites. From Wordnik.com. [Stromatolites - The Panda's Thumb] Reference
Poitou the limestone is dolomitic and bears nodules of chert. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"] Reference
Shale, chert, and Precambrian igneous rocks are also present. From Wordnik.com. [Ecoregions of Iowa and Missouri (EPA)] Reference
Sometimes gastroliths are made out of chert containing fossils. From Wordnik.com. [Plesiosaur poop! - The Panda's Thumb] Reference
It is carbon steel and thus will spark against flint, chert, etc. From Wordnik.com. [Favorite knife?] Reference
The sand and chert gravel surficial materials are covered by sandy loam topsoils. From Wordnik.com. [Ecoregions of Tennessee (EPA)] Reference
Mr. Kaswell, a Washington, D. C.-based securities lawyer at D.chert, declined to comment. From Wordnik.com. [White House Selects] Reference
The chert tends to project in shelves and ledges, being harder than the sedimentary rock. From Wordnik.com. [a day without a bruise is wasted.] Reference
Cretaceous-age deposits of silt, sand, clay, and gravel overlie the older limestone, shale, and chert. From Wordnik.com. [Ecoregions of Mississippi (EPA)] Reference
The Meramec River Hills ecoregion is deeply dissected, with steep-sided hills and chert-covered ridges. From Wordnik.com. [Ecoregions of Iowa and Missouri (EPA)] Reference
Billy had showed David how to knap flint and chert the week before, after seeing a filmstrip about it in class. From Wordnik.com. [Someone Comes to Town, Someone Leaves Town] Reference
"Most of them are crude cutting instruments made of chert and shale," says Shimada, "and have clearly been worked.". From Wordnik.com. [This Old House] Reference
In addition to the brown color, mm-sized green ophiolitic and red chert clasts occur in the fine-grained sediments. From Wordnik.com. [Interactive Dig Sagalassos - Survey Report 18] Reference
Soils are mostly derived from cherty carbonate rocks, with chert stone comprising about 20% to 60% of the soil mass. From Wordnik.com. [Ecoregions of Iowa and Missouri (EPA)] Reference
Goodyear thinks the site was used for the exploitation of chert pebbles sometime between 12,000 and 20,000 years ago. From Wordnik.com. [Pre-Clovis Surprise] Reference
This type of chert contains the skeletons of innumerable radiolarian creatures. From Wordnik.com. [WN.com - Articles related to Rendell pushes new tax, fee hikes to fund roads, transit] Reference
In the same limestone there are enormous beds of chert, agates, and carnelians. From Wordnik.com. [Canyons of the Colorado] Reference
What is the relationship between blue greens (algea) and the rings in gunflint chert?. From Wordnik.com. [Yahoo! Answers: Latest Questions] Reference
Maybe if we used this rock (e.g. Flint or chert) instead of that rock (say, sandstone) the tool might work better?. From Wordnik.com. [The Next Web] Reference
Although mutually distant, five tuff beds, all in chert, have similar U-Pb zircon ages of about 470 million years ago. From Wordnik.com. [EurekAlert! - Breaking News] Reference
LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.
Questions? Feedback? We want to hear from you!
Email us
or click here for instant support.
Copyright © 2005 and after - LearnThat Foundation. Patents pending.