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Latest Sedimentology Stories

5e2a1059b7146abcb83afc94cd8ad59a1
2008-11-18 10:39:41

Marginal plants, particularly trees, play a crucial role in sustaining the biodiversity of Europe's big river systems, according to a recently held workshop organized by the European Science Foundation (ESF). This finding provides important clues for protecting Europe's rivers against a combined onslaught from human development and climate change, which are tampering with existing ecosystems and changing both the physical and biological forces acting upon them. Both aquatic plants (living in...

2008-10-14 03:00:19

By Kristin S. Agostoni Sand and sediment clogging the south entrance to the Marina del Rey channel will be dredged this fall using technology designed to separate contaminants from beach-suitable sand. The U.S. Army Corps of Engineers plans to pump the dredged material from the channel entry to a Dockweiler Beach parking lot, where a machine will extract polluted fine particles from coarse sand, a spokesman said. The goal is to haul away the contaminants - estimated to be about 10...

2008-10-09 18:00:00

By Tony Henderson RECENT flooding has been part of the price for the way the landscape has been changed in the past, a North river scientist has said. "We are paying the price for not thinking about how our management of the land impacts negatively on the water environment," said Professor Stuart Lane, executive director of the Institute of Hazard and Risk at Durham University. Prof Lane said past measures, such as digging drainage grips in upland moors, had caused major problems....

2942675064e698a08a7e9ce06bae028f
2008-10-06 09:59:33

As the world looks for more energy, the oil industry will need more refined tools for discoveries in places where searches have never before taken place, geologists say. One such tool is a new sediment curve (which shows where sediment-on-the-move is deposited), derived from sediments of the Paleozoic Era 542 to 251 million years ago, scientists report in this week's issue of the journal Science. The sediment curve covers the entire Paleozoic Era. "The new Paleozoic sea-level sediment curve...

2008-10-01 09:00:31

TORONTO, CANADA--(Marketwire - Oct. 1, 2008) - Shoreham Resources Ltd. (TSX VENTURE:SMH) ("SMH" or "Shoreham"), a Canadian based exploration company dedicated to the exploration of advanced precious metal and polymetallic deposits in South America and Canada, is pleased to announce further developments regarding its Potaro-Maple Creek gold and diamond project in Guyana. Pursuant to an agreement with Vannessa Ventures Ltd. (now Infinito Gold Corp. (TSX VENTURE:IG)) finalized in March 2007, the...

2008-10-01 03:00:19

By Hsu, Huai-Houh Preparation of Large-Sized Silty Sand Specimens Using a Water Spray Method In-situ tests are often used to determine the engineering properties of sand. The cone penetration test (CPT) is a widely used method. Interpretations of the CPT are mostly developed based on chamber calibration tests. Early CPT calibration tests used clean, uniformly graded silica or quartz sand in most cases. Many empirical rules and analytical models have been established based on tests using...

2008-09-29 18:00:31

ST. LOUIS, Sept. 29 /PRNewswire-FirstCall/ -- Patriot Coal Corporation today announced that it intends to idle its Jupiter mining complex by the end of 2008. The Jupiter complex produced 1.5 million tons of thermal coal in 2007. The complex currently consists of one underground mine, and previously included the Thunderhill surface mine, which was closed as a result of an October 2007 court injunction that blocked the use of a lawfully issued mining permit. The constrained underground...

2008-09-26 15:00:24

By Lisa Vernon-Sparks; David E Chopy COVENTRY -- Developer Nicholas E. Cambio has signed an agreement with the state to prevent the erosion of soil from his Centre of New England business park into neighboring lakes and wetlands. Under the agreement signed Sept. 11, Cambio must pay the Department of Environment $103,000 in fines and place $225,000 in escrow to perform drainage and other work to protect the abutting properties. The agreement lists a timetable for compliance in various...

95512bdf7faa2d918e0f05987a965e421
2008-09-12 10:30:00

The precise timing of the origin of life on Earth and the changes in life during the past 4.5 billion years has been a subject of great controversy for the past century. The principal indicator of the amount of organic carbon produced by biological activity traditionally used is the ratio of the less abundant isotope of carbon, 13C, to the more abundant isotope, 12C. As plants preferentially incorporate 12C, during periods of high production of organic material the 13C/12C ratio of carbonate...

2008-08-05 15:00:25

By MACDONALD, Rosalyn BEACH users are being warned to stay away from eroding sand dunes and hanging stairways along New Plymouth's waterfront. New Plymouth District Council acting parks manager Trevor Hornby says many people are excited about the stormy weather, but he warns them to stay away from the danger zones. "The last thing we want is for someone to be buried under collapsing sand -- especially if that someone is a child -- so we're asking parents to keep an eye on their...


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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Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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