Latest Sedimentary rocks Stories
Research published today reveals the previously unidentified role that fish play in the production of sediments in the world's oceans, and specifically of the carbonate sediments that contain critical records of changes in ocean chemistry and climate shifts in the geological past.
Geologist cites safety and necessity of Marcellus Shale development UNIVERSITY PARK, Pa., Feb.
HOUSTON, Dec. 20, 2010 /PRNewswire/ -- Synthesis Energy Systems, Inc.
PITTSBURGH, Nov. 15, 2010 /PRNewswire-FirstCall/ -- CONSOL Energy Inc. (NYSE: CNX) will present at the Dahlman Rose & Co. First Annual Global Metals, Mining & Materials Conference on November 17, at 1:30 p.m. ET.
HOUSTON, Nov. 10, 2010 /PRNewswire-FirstCall/ -- Gastar Exploration Ltd.
PITTSBURGH, Sept. 28 /PRNewswire-FirstCall/ -- CONSOL Energy Inc. (NYSE: CNX) has refinanced $102.865 million of industrial development bonds associated with its 100%-owned CNX Marine Terminal in the Port of Baltimore, Maryland.
MINNEAPOLIS, Sept. 16 /PRNewswire/ -- Bixby Energy Systems, Inc.
HOUSTON and SYDNEY, Sept. 15 /PRNewswire-FirstCall/ -- Synthesis Energy Systems, Inc.
TSX.V Symbol: PTR VANCOUVER, June 21 /PRNewswire-FirstCall/ - Petromin Resources Ltd. (TSX.V: PTR) ("Petromin") is pleased to announce that Terrawest Energy Corp.
TSX.V Symbol: PTR VANCOUVER, May 25 /PRNewswire-FirstCall/ - Petromin Resources Ltd. (TSX.V: PTR) ("Petromin" or the "Company") is pleased to announce that Terrawest Energy Corp.
The Flint Hills, known historically as Bluestern Pastures or Blue Stem Hills, are a group of hills located in eastern Kansas reaching into north central Oklahoma, extending from Marshall County and Washington County in Kansas in the north to Cowley County, Kansas and Osage and Kay counties in Oklahoma towards the south. The people of Oklahoma usually refer to the same geologic formation as the Osage Hills or “The Osage”. The Flint Hills are designated as a unique ecoregion due to it...
Celestite (SrSO4) is a mineral consisting of strontium sulfate. The mineral is also known as celestine and is named for its occasional delicate blue color. Celestite occurs as crystals, and also in compact massive and fibrous forms. It is mostly found in sedimentary rocks, often associated with the minerals gypsum, anhydrite, and halite. The mineral is found worldwide, usually in small quantities. Pale blue crystal specimens are found in Madagascar.
Chert is a fine-grained silica-rich cryptocrystalline sedimentary rock that may contain small fossils. It varies greatly in color from white to black, but most often manifests as gray, brown, grayish brown and light green to rusty red; its color is an expression of trace elements present in the rock, and both red and green are most often related to traces of iron (in its oxidized and reduced forms respectively). It outcrops as nodules in limestone, chalk, and dolostone formations as a...
In geology, a conglomerate is a rock consisting of other stones that have been cemented together. Conglomerates are sedimentary rocks consisting of subangular clasts and are thus differentiated from breccias, which consist of angular clasts. Both conglomerates and breccias are characterized by clasts larger than sand (>2 mm). There are two varieties of conglomerate, defined by texture: paraconglomerates and orthoconglomerates. Paraconglomerates are one of two varieties of conglomerate...
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,...