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Latest Limestone Stories

2010-03-08 12:47:48

Scientists have made synthetic "Ëœsea shells' from a mixture of chalk and polystyrene cups "“ and produced a tough new material that could make our homes and offices more durable. A team of materials scientists and chemists have taken inspiration from sea shells found on the beach to create a composite material from dissimilar "Ëœingredients'. Their technique could be used to make ceramics with high resistance to cracking "“ which could in turn be used in...

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2010-02-05 13:56:54

The chemical composition of our oceans is not constant but has varied significantly over geological time. In a study published this week in Science, researchers describe a novel method for reconstructing past ocean chemistry using calcium carbonate veins that precipitate from seawater-derived fluids in rocks beneath the seafloor. The research was led by scientists from the University of Southampton's School of Ocean and Earth Science (SOES) hosted at the National Oceanography Centre,...

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2010-01-21 10:09:10

Ice Age climate records from an Arizona stalagmite link the Southwest's winter precipitation to temperatures in the North Atlantic, according to new research. The finding is the first to document that the abrupt changes in Ice Age climate known from Greenland also occurred in the southwestern U.S., said co-author Julia E. Cole of the University of Arizona in Tucson. "It's a new picture of the climate in the Southwest during the last Ice Age," said Cole, a UA professor of geosciences. "When it...

2009-12-08 12:40:00

NEW YORK, Dec. 8 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue: Calcium Carbonate - A Global Market Report http://www.reportlinker.com/p0164401/Calcium-Carbonate---A-Global-Market-Report.html Calcium carbonate is primarily used in the paper industry. The material is also extensively used in paint, plastic and rubber industries for enhanced product quality and cost reduction. Strong and continued growth is forecast in the global...

2009-10-27 15:05:00

DALLAS, Oct. 27 /PRNewswire-FirstCall/ -- United States Lime & Minerals, Inc. (Nasdaq: USLM) today reported third quarter and first nine months 2009 results: Revenues decreased to $31.6 million in the third quarter 2009 from $38.9 million in the comparable prior year quarter, a decrease of $7.3 million, or 18.8%. Revenues from the Company's lime and limestone operations decreased $3.7 million, or 11.1%, to $29.9 million in the third quarter 2009, compared to $33.6 million in the...

2009-10-05 05:00:00

LAS VEGAS, Oct. 5 /PRNewswire-FirstCall/ -- Texas Wyoming Drilling, Inc. (Pink Sheets: TWDL) a publicly traded company on Pink Sheets, has announced that it has entered into a joint venture agreement with Legacy Rock Company, a Nevada based corporation, to mine and distribute Calcium Carbonate from properties owned by Legacy Rock Company. TWDL will be in charge of operations and profits will be divided on an equal basis, after TWDL recovers its costs. The properties are currently...

2009-09-14 08:15:00

RENO, NV, Sept. 14 /PRNewswire-FirstCall/ - Infrastructure Materials Corp (NASDAQ OTC-BB: Symbol IFAM) (the "Company") is pleased to announce results from the last 10 holes of a 24 drill hole program (7,000 ft) completed on the Morgan Hill Limestone Project. The property contains 113 mineral claims covering approximately 3 square miles and located 20 miles west of Wells, Nevada in Elko County. The drill program of 24 reverse circulation holes was designed to evaluate three adjoining sections...

2009-08-04 08:15:00

TORONTO, Aug. 4 /PRNewswire-FirstCall/ - Infrastructure Materials Corp. (NASDAQ OTC-BB: Symbol IFAM) (the "Company") is pleased to announce results of a further 10 holes of a 24 drill hole program (7,000 ft) completed on the Morgan Hill Limestone Project. The property contains 113 mineral claims covering approximately 3 square miles and located 20 miles west of Wells, Nevada in Elko County. Analysis of the drill results and new detail surface mapping to date indicates the potential for three...

2009-07-24 15:45:00

DALLAS, July 24 /PRNewswire-FirstCall/ -- United States Lime & Minerals, Inc. (Nasdaq: USLM) today reported second quarter 2009 results: Revenues decreased to $29.1 million from $41.2 million in the comparable prior year quarter, a decrease of $12.1 million, or 29.3%. Revenues from the Company's lime and limestone operations in the second quarter 2009 decreased $8.8 million, or 24.1%, to $27.6 million from $36.4 million in the comparable 2008 quarter, while revenues from its natural...

2009-07-13 08:15:00

RENO, NV, July 13 /PRNewswire-FirstCall/ - Infrastructure Materials Corp (NASDAQ OTC-BB: Symbol IFAM) (the "Company") is pleased to announce results from the first 4 holes of a 24 drill hole program (7,000 ft) completed on the Morgan Hill Limestone Project. The property contains 113 mineral claims covering approximately 3 square miles and located 20 miles west of Wells, Nevada in Elko County. The drill program of 24 reverse circulation holes was designed to evaluate three target areas that...


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
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.