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Latest Limestone Stories

Ancient Climate Change Evidence From Fossilized Plankton
2013-10-26 05:41:11

redOrbit Staff & Wire Reports - Your Universe Online Climate change dating as far back as hundreds of million years ago was recorded in the shells of ancient oceanic plankton, according to new research published in the journal Earth and Planetary Sciences Letters. Typically, scientists analyze polar ice in search of information about the planet’s temperature and atmosphere, but the oldest Antarctic ice core records only date back to approximately 800,000 years ago. In the new...

2013-10-01 23:23:19

Reportbuyer.com just published a new market research report: Global Calcium Carbonate Industry. London (PRWEB) October 01, 2013 This report analyzes the worldwide markets for Calcium Carbonate in Thousand Tons by the following Product Segments: Ground Calcium Carbonate, and Precipitated Calcium Carbonate. The End Use Segments also analyzed for Precipitated Calcium Carbonate include: Paper, Paints & Coatings, Adhesives & Sealants, Plastics, and Others. The report provides separate...

Legacy Of Acid Rain Threatens Eastern US Water Supplies
2013-08-27 06:39:58

Cary Institute of Ecosystem Studies Human activities are changing the water chemistry of many streams and rivers in the Eastern U.S., with consequences for water supplies and aquatic life, so reports a new study in the journal Environmental Science and Technology. In the first survey of its kind, researchers looked at long-term alkalinity trends in 97 streams and rivers from Florida to New Hampshire. Sites ranged from small headwater streams to some of the nation's largest rivers. Over...

Eastern US Water Supplies Affected By Changing River Chemistry
2013-08-26 14:41:20

University of Maryland 25+ years of records show two-thirds of region's rivers are now alkaline -- a legacy of acid rain, researchers say Human activities are changing the basic chemistry of many rivers in the Eastern U.S. in ways that have potentially major consequences for urban water supplies and aquatic ecosystems, a University of Maryland-led study has found. In the first survey of its kind, a research team looked at long-term records of alkalinity trends in 97 rivers from...

2013-06-11 23:21:40

Unique games with chalk and a brilliant egg chalk paint recipe have been published on Kids Activities Blog. These ideas take chalk playtime to a higher level. Dallas, Texas (PRWEB) June 11, 2013 Summertime is around the corner and chalk is a kid's favorite outdoor activity. Unique games with chalk and a brilliant egg chalk paint recipe take chalk playtime to a higher level. Seasoned moms on Kids Activities Blog have posted their favorite chalk activities to share with everyone's summer...

2013-06-03 23:14:11

GIA announces the release of a comprehensive global report on the Calcium Carbonate markets. Global market for Calcium Carbonate is projected to reach 94 million tons by 2018, driven by the rising consumption in paper and plastic industries and the growing demand for PCC and GCC in Asia-Pacific, Latin America, and the Middle East. San Jose, California (PRWEB) June 03, 2013 Follow us on LinkedIn - Calcium Carbonate (CaCO3) is an inorganic mineral that finds extensive use as functional and...


Latest Limestone Reference Libraries

Carlsbad Caverns National Park
2013-04-17 15:30:34

Carlsbad Caverns National Park is located in southeastern New Mexico in the United States. The park holds 46,766 acres of land, of which 2/3 is a designated wilderness, and is thought to have been discovered by Jim White, who entered the Carlsbad Caverns and named many of the areas within the caverns, including Queens Chamber, New Mexico Room, Green Lake Room, Giant Dome, Witch's Finger, and Bottomless Pit. President Calvin Coolidge established the area as a national monument in 1923, but it...

28_3f12abda63415a07ee5b6c5d30ef8239
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their association with the ores at the Carthinian iron mines. The type location for aragonite is Molina de...

28_9c404ab9a4754b403781670c9e631915
2005-05-26 11:59:32

he mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earth's surface. It is a common constituent of sedimentary rocks, limestone in particular. It is also the primary mineral in metamorphic marble. It also occurs as a vein mineral in deposits from hot springs, and also occurs in caverns as stalactites and stalagmites. Calcite is often the primary constituent of the shells of marine organisms (e.g. plankton,...

28_a3b402afde54eeee86bc53e0e9a360b3
2005-05-26 11:01:09

Dolomite is a mineral (formula CaMg(CO3)2) consisting of a calcium magnesium carbonate found in crystals and in beds as dolostone. A pure form of dolostone would be rare, however; it usually intergrades with limestone and is referred to as dolomitic limestone, or in old U. S. geologic literature as magnesian limestone. Dolomite has physical properties similar to those of the mineral calcite, but is less soluble in hydrochloric acid. There is uncertainty as to the cause of its formation,...

28_af149e6f4821ab4ec3c213f12d27e305
2005-05-26 09:38:30

Limestone is a sedimentary rock composed of the mineral calcite (calcium carbonate). The primary source of this calcite is usually marine organisms. These organisms secrete shells that settle out of the water column and are deposited on ocean floors as pelagic ooze (see lysocline for information on calcite dissolution). Secondary calcite may also be deposited by supersaturated meteoric waters (groundwater that precipitates the material in caves). This produces speleothems such as stalagmites...

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Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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