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Latest Sedimentology Stories

2008-07-08 12:00:56

Les Mines J.A.G. Ltee - ('JAG' - the 'Company')(TSX VENTURE: JML) wishes to update the status of its search for petroleum and natural gas on its Temiscouata Lac St-Jean and Charlevoix properties where its been active since 2006. In June 2008, JAG filed with the TSX-Venture Exchange a 51-101 report prepared by Mr.Paul Laroche, engineer geologist and petroleum geophysicist, with the assistance of Genevieve Camire and Marc Richer-LaFleche, both geologists. The report presents a summary of the...

2008-07-04 12:00:15

By John Dodge, The Olympian, Olympia, Wash. Jul. 4--Using Capitol Lake dredge spoils to reshape the shoreline along Deschutes Parkway will be the best way to reduce effects of sediment accumulating in lower Budd Inlet if the lake is turned back into a Deschutes River estuary, a federal study released Thursday suggests. The $100,000 study by the United States Geological Survey is part of a lake-versus-estuary comparison by the Capitol Lake Adaptive Management Plan steering committee...

2008-07-01 00:05:00

A five-year landscape project aimed at saving the remaining Culm grassland of North and West Devon was launched at a special conference last week. Eighty delegates with an interest in saving the unique wet grassland habitat attended the conference at Eggesford, where they heard detailed plans from Devon Wildlife Trust. Key speakers included Professor Michael Winter, director of the Centre for Rural Research at the University of Exeter. Devon Wildlife Trust's Working Wetlands scheme - the...

2008-06-24 02:30:07

International Nickel Ventures Corporation ("INV") (TSX: INV)(TSX: INV.WT) announces that initial drilling has intersected disseminated nickel-copper sulphide mineralization with values up to 0.98% Ni and 0.58% Cu on the Damolandia project, located 60 km north of the city of Goiania, Goias State, Brazil. Damolandia Property, Goias State, Brazil INV completed a seven-hole, 1,553 metre drill program on the Damolandia property to test a combination of geological, soil geochemical, and ground...

2008-06-06 03:00:16

By McClain, Michael E Naiman, Robert J Although mountains often constitute only a small fraction of river basin area, they can supply the bulk of transported materials and exert strong regulatory controls on the ecological characteristics of river reaches and floodplains downstream. The Amazon River exemplifies this phenomenon. Its muddy waters and its expansive and highly productive white-water floodplains are largely the products of forces originating in distant Andean mountain ranges....

2008-02-29 03:00:28

By Houston, John Hart, Dan; Houston, Andrew Abstract: Neogene sediments in the northern Chilean forearc display a wide range of near syndepositional structures. Analysis of the origin and distribution of these structures in space and time offers new insights into the development of the forearc basins. The structures are described in detail and show many features associated with soft-sediment deformation, pseudo-diapirism and slope failure. Synsedimentary deformation reached a peak in the...

2008-02-25 16:11:08

Those dust-caked frontier towns depicted in Western movies are no exaggeration: The West has become a much dustier place over the past few hundred years. Westward U.S expansion and changes in humans' land use have made the West five times dustier in the past two centuries than it had been in the past 5,000 years, a new study of lakebed sediments finds. "There seems to be a perception that dusty conditions in the West are just the nature of the region," said lead researcher Jason Neff...

2008-01-10 14:17:01

Sweeping sands across the Sahara and other dune expanses are blown by more than just wind, scientists have discovered. Powerful electric fields spring up near the desert floor and propel sand grains into the air. By accounting for this electricity, researchers say they can design better climate change models, and even explain features of the dust on Mars. Scientists have long been at a loss to explain why sand sweeping across the desert doesn't bounce higher when the wind gets...

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2007-11-20 14:54:19

The United Nation's World Meteorological Organization, or WMO, is launching an early warning system that can help Arizona and other states minimize hazards from intercontinental sand and dust storms. A University of Arizona research professor is leading the international team drafting the U.N. plan which will begin operation early next year. Storms generated in arid parts of the world can deposit thousands of tons of airborne sand and dust on cities and over continents. It exposes populations...

2006-07-21 11:40:32

SAN FRANCISCO (AP) - More than 2 square miles of some of the world's largest underwater sand dunes were mapped in the Pacific Ocean off the San Francisco coast as part of a study to help researchers better understand beach erosion. The submerged dunes, called sand waves, are located just west of the Golden Gate Bridge, measuring more than 30 feet high and 700 feet long, according to researchers with the U.S. Geological Survey. The sand waves were created by the displacement of sediment by...


Latest Sedimentology Reference Libraries

River Delta
2013-04-18 22:36:25

A river delta is a landform that is created at the mouth of a river, where the river flows into an ocean, estuary, lake, sea, or reservoir. These deltas are built from the deposition of the sediment that is carried by the river as the flow exit’s the mouth of the river. Over a long period of time, this deposition constructs the distinctive geographic pattern of a river delta. The creation of a delta is made up of three core forms: the bottomset, topset, and foreset/frontset. Bottomset...

28_b760796d3dace508242e89fc53d49081
2005-05-26 11:13:08

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...

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