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Latest Sedimentology Stories

eee85b1263b9d386f8bbd8db3badfb081
2010-06-17 13:35:16

Scientists tracking wetland characteristics find potential good news The Gulf of Mexico: what role will the Mississippi River play in oil washing ashore and into delta wetlands? One of the spill's greatest environmental threats is to Louisiana's wetlands, scientists believe. But there may be good news ahead. Scientists affiliated with the National Center for Earth-surface Dynamics (NCED), a National Science Foundation (NSF) Science and Technology Center headquartered at the University of...

2010-04-29 07:00:00

HOUSTON, April 29 /PRNewswire-FirstCall/ -- Sale of South Florence Field, Vermilion Parish, Louisiana Dune Energy (NYSE Amex: DNE) announced it has reached an agreement in principle to sell its interests in the South Florence field for $30 million to a private party. As of December 31, 2009, Dune's interest in this field corresponded to 11.9 Bcfe of proved reserves based on an independent reserve report. Production from the field has averaged approximately 3.8 Mmcfe/day during the...

2010-04-14 05:18:00

CARRABELLE, Fla., April 14 /PRNewswire/ -- For three hours, firefighters from the Carrabelle, Lanark and Apalachicola, Florida, filled sand bags to build a forty-five foot long storm surge wall. The training exercise was conducted using newly developed bright blue and yellow high tech sand bags. The new wedge-shaped, wide mouth sand bags were a hit with the fire crews. The wall went up in half the time and nobody got their fingers cut and bruised trying to fill narrow mouth conventional...

e09133d34449f5a37831ccb23493d030
2010-04-05 11:05:00

Surplus food can be a double-edged sword for bottom-feeders in the ocean deep, according to a new study in the April issue of Ecology. While extra nutrients give a boost to large animals on the deep sea floor, the feeding frenzy that results wreaks havoc on smaller animals in the seafloor sediment, researchers say. Descend thousands of feet under the ocean to the deep sea floor, and you'll find a blue-black world of cold and darkness, blanketed in muddy ooze. In this world without sunlight,...

e96928bcb25fc05c4149c8c68ad6f6411
2010-03-16 14:44:01

An interdisciplinary team of physicists and geologists led by the University of Pennsylvania has made a major step toward predicting where and how large floods occur on river deltas and alluvial fans. In a laboratory, researchers created a miniature river delta that replicates flooding patterns seen in natural rivers, resulting in a mathematical model capable of aiding in the prediction of the next catastrophic flood. The results appear in the current issue of Geophysical Research Letters....

2010-03-02 17:59:00

ALBUQUERQUE, N.M., March 2 /PRNewswire/ -- Jennifer Hise, a 3rd generation owner of CEMCO, is serving her first term on the NSSGA M&S Division Executive Committee. Executive Committee members serve for 1 year terms for up to three terms. Jennifer's goal is to be the first woman Chairman of the M&S Division, following in her father Neil Hise's footsteps, who was also an executive committee member prior to becoming Chairman in 2005. "It is an honor to be a member of this committee...

f09b637912b62b7254b0d110eb346f481
2010-01-19 11:56:19

The sediments of the Kimmeridge Clay Formation were deposited during the Late Jurassic between around 160 and 145 million years ago, the age of the reptiles. They are the main oil source rock in the North Sea. However, within this unit beds rich in organic matter are interspersed with organic-poor sediments. New evidence demonstrates that organic-poor sediments were probably caused by post-depositional loss of organic matter during so-called 'burn-down' events. The Kimmeridge Clay Formation...

50dd7ed7824ed37e6a7523a8ed9128841
2010-01-11 09:20:00

The new species is the largest of its type in the Middle East, but its habitat is endangered A new and previously unknown species of spider has been discovered in the dune of the Sands of Samar in the southern Arava region by a team of scientists from the Department of Biology in the University of Haifa-Oranim. Unfortunately, however, its habitat is endangered. "The discovery of this new spider illustrates our obligation to preserve the dune," says Dr. Shanas, who headed the team of...

2009-12-10 13:46:13

Environmental scientists at the University of Pennsylvania and Durham University have employed a novel combination of geological and model reconstructions of wetland environments during a 10,000-year period to address spatial variations in sea-level history and provide quantitative estimates of subsidence along the east coast of England. The findings indicate that glacial rebound "” the rise or fall of land masses that were depressed by the huge weight of ice sheets during the last...

9208b465e62cad45dac1cf3e4c7e61af1
2009-11-20 10:59:16

The Dutch beach in Monster is currently inhabited by bulldozers that are piling sand taken from the bottom of the North Sea into dunes in a determined attempt to protect the Netherlands from flooding. The ambitious project, located 15 miles south of The Hague, is one of several plans in a continued fight against increasing sea levels accredited to global warming. "Because it is a low-lying delta, the Netherlands is very sensitive to climate change," Water Management Deputy Minister Tineke...


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
caparison
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.
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