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Latest Limestone Stories

2011-07-29 13:00:00

POTTSVILLE, Pa., July 29, 2011 /PRNewswire-USNewswire/ -- The Department of Environmental Protection today approved a 50-foot, next-level excavation that will allow New Hope Crushed Stone & Lime to excavate limestone to a depth of 170 feet below sea level at its Bucks County quarry. The quarry, which has been in operation since the 1930s, has already been permitted to mine limestone to 200 feet below mean sea level, but approval must be granted at each 50-foot increment to continue to...

2011-07-16 00:00:35

IMS, a pioneer and leader in natural stone refinishing and concrete cleaning, polishing and restoration, has released an educational video series for building engineers/managers and other professionals, to answer common questions"¦ (PRWEB) July 15, 2011 IMS, Inc. the pioneers in concrete and natural stone restoration, have launched an innovative new video series for professionals and consumers alike. Featuring state-of-the-art high definition images and crystal clear sound...

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2011-05-26 14:08:53

Finds that rocks used as key geologic evidence were formed deep within Earth millions of years after the ice age ended There's a theory about how the Marinoan ice age"”also known as the "Snowball Earth" ice age because of its extreme low temperatures"”came to an abrupt end some 600 million years ago. It has to do with large amounts of methane, a strong greenhouse gas, bubbling up through ocean sediments and from beneath the permafrost and heating the atmosphere. The main physical...

2011-05-20 00:00:29

Limestone Networks, the on-demand dedicated server provider located in Dallas, TX, has made public a new website design and company logo. Dallas, TX (PRWEB) May 18, 2011 Limestone Networks, the Dallas-based, on-demand dedicated server provider, has unveiled a new logo and website. In late 2010, Limestone Networks began plans to initiate a massive overhaul of their main company website. The design plans quickly turned into a complete image re-design, led by company CEO Gary Kendall. Kendall...

2011-04-27 17:03:00

DALLAS, April 27, 2011 /PRNewswire/ -- United States Lime & Minerals, Inc. (NASDAQ: USLM) today reported first quarter 2011 results: Revenues in the first quarter 2011 decreased to $33.1 million from $33.6 million in the prior year comparable quarter, a decrease of $549 thousand, or 1.6%. Revenues from the Company's lime and limestone operations in the first quarter 2011 decreased $1.3 million, or 4.1%, to $30.2 million from $31.5 million in the comparable 2010 quarter, while revenues...

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2011-02-23 10:56:19

An international research team, with Spanish participation, has discovered a new species of mollusk, Polyconites hadriani, in various parts of the Iberian Peninsula. The researchers say this species, which is the oldest in its genus, adapted to the acidification of the oceans that took place while it was in existence. This process could now determine the evolution of modern marine systems. The new species Polyconites hadriani, which was discovered in 2007, has been crowned the oldest in the...

2011-01-12 08:00:00

Regional disparities in the recovery process will exist ORLANDO, Fla., Jan. 12, 2011 /PRNewswire-USNewswire/ -- Employment numbers seem to be improving, but tight lending standards and large home inventories are sending a clear signal to homebuilders to restrain building activity in 2011. According to a recent report by the Portland Cement Association (PCA), the U.S. will record 492,000 housing starts in 2011, a modest 3.4 percent gain compared to 2010 levels. This will increase...

2010-12-16 07:00:00

ZHAOYUAN CITY, China, Dec. 16, 2010 /PRNewswire-Asia/ -- China Shuangji Cement, Ltd. (OTC Bulletin Board: CSGJ) ("China Shuangji" or the "Company"), a leading producer of high-quality Portland cement in Shandong and Hainan Provinces in the People's Republic of China (PRC), announced that its Dongfang cement plant on Hainan Island, which it previously announced was on a published list of more than 2,000 production lines across China that the Ministry of Industry and Information Technology...

2010-12-14 07:00:00

ZHAOYUAN, China, Dec. 14, 2010 /PRNewswire-Asia/ -- China Shuangji Cement, Ltd. (OTC Bulletin Board: CSGJ) ("China Shuangji" or the "Company"), a leading producer of high-quality Portland cement in Shandong and Hainan Provinces in the People's Republic of China (PRC), announced today that it has retained Column Associates, a premier international executive search firm, to lead the search to find a new full-time CFO to replace its interim CFO. Column Associates, headquartered in Beijing,...

2010-12-08 07:00:00

ZHAOYUAN CITY, China, Dec. 8, 2010 /PRNewswire-Asia-FirstCall/ -- China Shuangji Cement, Ltd. (OTC Bulletin Board: CSGJ) ("China Shuangji" or the "Company"), a leading producer of high-quality Portland cement in Shandong and Hainan Provinces in the People's Republic of China (PRC), announced today that it has begun the permit process to build a new a new 2,000,000 MT cement plant on Hainan Island to replace its existing Dongfang production line. China Shuangji's new state-of-the-art...


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
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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