chert


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Related to chert: Dolostone, micrite

chert

 (chûrt)
n.
1. A variety of silica that contains microcrystalline quartz.
2. A siliceous rock of chalcedonic or opaline silica occurring in limestone.
[Origin unknown.]
chert′y adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

chert

(tʃɜːt)
n
(Minerals) a microcrystalline form of silica usually occurring as bands or layers of pebbles in sedimentary rock. Formula: SiO2. Varieties include flint, lyddite (Lydian stone). Also called: hornstone
[C17: of obscure origin]
ˈcherty adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

chert

(tʃɜrt)

n.
a compact rock consisting essentially of microcrystalline quartz.
[1670–80; orig. uncertain]
chert′y, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

chert

(chûrt)
A hard, brittle, reddish-brown to green sedimentary rock consisting of very small crystals of quartz.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

chert

A type of sedimentary rock made up of of tiny quartz crystals.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chert - variety of silica containing microcrystalline quartz
taconite - a variety of chert containing magnetite and hematite; mined as a low-grade iron ore
silica, silicon dioxide, silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

chert

n (Min) → Kieselschiefer m, → Feuerstein m, → Hornstein m; (Build) → Gneiszuschlag(stoff) &, Feingranitzuschlag m (für Sichtbeton)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
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References in periodicals archive ?
VMS deposits are commonly associated with regionally developed iron- and (or) manganese-rich metalliferous sediment and chert developed at the same time-stratigraphic horizon as the massive sulfide deposits.
Alt Resources Ltd (ASX:ARS) Massive Sulphides at Shepherds Bush and Bottle Creek
The samples that Westall and her team studied were found in the Josefsdal Chert volcanic deposit, which is located in the Makhonjwa Mountains in north-eastern (https://www.ibtimes.com/man-allegedly-killed-girlfriend-baby-burnt-their-bodies-2791571) South Africa .
Evidence Of Alien Matter Found In South Africa
Archeologists have found tools made of obsidian (volcanic glass) and chert (fine-grained sedimentary rock) dating back to the Neolithic Period some 5,000 years ago in a coastal area in what is now Misamis Oriental province.
Misamis Oriental town yields Stone Age artifacts
The sequence boundary is marked from the laterite beds, while maximum flooding surface are marked from the chert beds.
SEQUENCE STRATIGRAPHIC AND PALYNOSTARTIGRAPHIC FRAMEWORK OF THE TOARCIAN-BATHONIAN STRATIGRAPHIC UNIT IN CHICHALI NALA, SURGHAR RANGE PUNJAB, PAKISTAN
The stone is chert, a flint-like substance used to chip small razor sharp blades off (microliths) which were used by our ancient ancestors to build composite tools to hunt with.
How Stirling's first people lived; DIGGING INTO THE PAST With Stirling Council archaeologist Dr Murray Cook
"101 American Fossil Sites You've Gotta See " also features a short history of life on Earth, from microbes in 3-billion-year-old chert to massive mammals of the Pleistocene ice ages.
101 American Fossil Sites You've Gotta See Albert B. Dickas
Tools made of bone and chert became more prevalent, such as scrapers, drills and tools for sewing and weaving.
Our Native American past: Part 1
Most of the material in and around the hearths is lithic, consisting of flakes and scrapers in local stone, as well as bifaces, points, knives, and various tools in grey-green chert, quartz, quartzite, and Ramah quartzite (Robbins, 1989:10; Tuck, 2005: 31-32).
Indigenous Traces on Basque Sites: Direct Contact or Later Reoccupation?
trace, teacher, teach, retch, react, reach, race, hatch, etch, erect, each, create, crate, chert, cheetah, cheer, cheater, cheat, chat, chart, char, cater, carte, cart, caret, care, arch, acre, ache, HEARTACHE Wordsquare: P.
QUIZ
"The stone tools uncovered at Llanfaethlu include chert and flint, which are fine grained silica rich, glass like stones that can be fashioned into a variety of tools, for example knives, scrappers to prepare animal hides, and axes."
STONE AGE FINDS AT WATER WORKS
Along the way, these migrants availed themselves of the many outcroppings of chert, a form of flint well suited for projectile points.
Crossroads of time
These analyses are ongoing, to date results indicate people occupying the site brought a stone toolkit that included non-local Tallahatta Sandstone and chert. These curated tools were used at the site, resharpened, and discarded there.
ANTHROPOLOGY POSTER ABSTRACTS

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