Navigation Links
Sandy beaches, hydrocarbon reservoirs, tectonic tilting: It's all about geology
Date:6/29/2012

cycling of material from Earth's interior to exterior and back again forms one of the planet's primary geochemical cycles. Oceanic crust reacts chemically with the ocean, and this process changes the composition of that crust. Thus, when oceanic crust is recycled back into the interior of the Earth, it adds components that were not present when it was first formed. One of the most interesting and least well known changes in the composition of ocean crust is its oxidation by the ocean. It has been proposed that subduction of this oxidized ocean crust, and release of the oxidized components within the Earth, cause portions of Earth's mantle to oxidize, and that this oxidation is a necessary prerequisite to the formation of some types of ore deposits that include copper, gold, and molybdenum. However, this conclusion is controversial. In this paper, K.A. Evans and colleagues used new analyses of mantle-derived material in oceanic crust and model calculations to explore the plausibility of different proposed fates for subducted oxidized material.


The offshore export of sand during exceptional discharge from California rivers

Jonathan A. Warrick and Patrick L. Barnard, U.S. Geological Survey, Pacific Coastal and Marine Science Center, 400 Natural Bridges Drive, Santa Cruz, California 95060, USA. Posted online 29 June 2012; doi: 10.1130/G33115.1.

Having an accurate accounting of how much sand is available to build beaches is important for understanding and dealing with coastal erosion. Coastal rivers on the U.S. west coast are the primary sources of sand to this region's popular beaches, and the majority of this sand is discharged during floods on these rivers. Warrick and Barnard found that rivers with high rates of sediment discharge, like the Santa Clara River of southern California, discharge sand far offshore of the littoral cell -- the nearshore area that provides sand for beaches. Thus, a significant amount of the sand discharg
'/>"/>

Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10

Related biology news :

1. A new vision for harnessing data about life on Earth
2. NIST launches new website to educate industry about alternatives to mercury thermometers
3. New discoveries about severe malaria
4. Purdue professor to speak before Congress about nanotechnology in brain treatment research
5. Study raises questions about use of anti-epilepsy drugs in newborns
6. Fruit flies provide new knowledge about uninhibited cell growth
7. Analysis raises atmospheric, ecologic and economic doubts about forest bioenergy
8. Whats in a surname? New study explores what the evolution of names reveals about China
9. Consumers need simple, concise messages about benefits of phytonutrients
10. Expedition to undersea mountain yields new information about sub-seafloor structure
11. New discoveries about brain-hand connection sought to improve therapies, treatments, prosthetics
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... cultivated efficiently, they are anything but sustainable: environmental ... cultivation is becoming increasingly evident. Despite their disadvantages, ... are regarded as the sole possibility of achieving ... finds Bernhard Schmid, an ecology professor at the ... of agriculture and forestry. After all, a new ...
(Date:10/15/2014)... pandemic risk from strains of influenza virus increases with ... to become complacent that the most substantial threats have ... Influenza pandemics arise when a new virus strain – ... – spreads in the human population. There have been ... worst of which – the 1918 Spanish Flu – ...
(Date:10/15/2014)... 15, 2014 NXT-ID, Inc. (NASDAQ: NXTD ... on the growing mobile commerce market releases photos and video of ... on Monday October 13 th . Gino ... and angel investor Mr. Chad A. Verdi rang ... NXT-ID thanked his investors and employees "for their work and dedication ...
Breaking Biology News(10 mins):Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3
... more vulnerable to their environment during embryonic development than ... the University of Glasgow in the UK. Until now, ... unfavorable conditions during the embryonic stage in birds have ... published in Springers journal, Behavioral Ecology and Sociobiology. ...
... gun and storage chest, JERICHO, N.Y., May 6 ... it has added two new products,to its smartTOUCH product ... retailers and online specialty sites., "We are excited ... our,smartTOUCH product line of consumer based finger activated products. ...
... of brain injury, a way to rejuvenate dead nerve ... glaucoma at home, number among this years nine winners ... surprises me every time I walk through this showcase ... many NJIT graduate and undergraduate students, said NJIT Provost ...
Cached Biology News:Seagulls: Are males the weaker sex? 2bioMETRX, Inc. Introduces New Products 2NJIT applauds students for studies on brain injury, glaucoma and more 2
(Date:10/20/2014)... YORK , Oct. 20, 2014 ... their experimental ZMapp™ antibody therapeutic to fight the ... how difficult and time-consuming the production of pharmaceuticals ... market research publisher said that while some may ... of this compound, those with industry knowledge are ...
(Date:10/20/2014)... 20, 2014  GenVec, Inc. (NASDAQ: GNVC ) ... Ph.D., from its board of directors effective on October 24, ... and served as its chairman from June 2006 to November ... and Corporate Governance and Audit Committees of the board.  ... decade of dedicated service to GenVec, and its stockholders," said ...
(Date:10/19/2014)... (PRWEB) October 19, 2014 The Latin ... the market in Latin America with analysis and forecast ... in 2013, and is expected to reach $2,366.8 million ... to 2018. , Browse through the TOC of the ... idea of the in-depth analysis provided. It also provides ...
(Date:10/19/2014)... 2014 The Asia-Pacific Speech Analytics market ... Asia-Pacific with analysis and forecast of revenue. This market ... to $208 million by 2019, at a Compound Annual ... , Browse through the TOC of the Asia-Pacific Speech ... in-depth analysis provided. It also provides a glimpse of ...
Breaking Biology Technology:Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3Zola P. Horovitz To Retire From GenVec Board 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
... fluorescent proteins in neurons, neuroscientists at Harvard University are imaging ... cells in a riotous spray of colors dubbed a "Brainbow." ... the Nov. 1 issue of the journal Nature by a ... Jeff W. Lichtman. , Brainbow allows researchers to tag neurons ...
... VANCOUVER, Oct. 31 /PRNewswire-FirstCall/ - Dragon Pharmaceutical ... announced that its biotech method,for 7ACA production ... production,line. Management believes this achievement validates the ... manufacturing technology. This,technology would bring immediate benefits ...
... Align,Technology, Inc. (Nasdaq: ALGN ), the ... without wires or brackets, has been named to,Deloitte,s ... a,ranking of the fastest growing technology, media, telecommunications, ... & Touche USA LLP, one of,the nation,s leading ...
Cached Biology Technology:Scientists create colorful 'brainbow' images of the nervous system 2Dragon Announces R&D Achievement in Biotech Manufacturing Process 2Dragon Announces R&D Achievement in Biotech Manufacturing Process 3Align Technology, Inc. Ranked 23rd in Deloitte's Technology Fast 50 Program for Silicon Valley Scientific & Medical Equipment, and Bio-Technology Companies 2Align Technology, Inc. Ranked 23rd in Deloitte's Technology Fast 50 Program for Silicon Valley Scientific & Medical Equipment, and Bio-Technology Companies 3
... 97 Cytological Labeling Kit provides a unique ... of cellular targets, including cell-surface receptors and ... Kit contains the patented ELF 97 phosphatase ... precipitate at the site of enzymatic activity ...
... between the various commercial and lab-prepared glass ... the length and GC content of the ... protocol employed all influence the optimal hybridization ... all the different variables to consider, it ...
... Stain combo offers these benefits: ... Offers a safer and ... Eliminates risks to yourself, the environment and your ... bp to >30 kb. UltraPure Agarose is a standard ...
This is a PYREX replacement Allihn condenser with a 34/45 inner joint on the bottom for the No. CLS3840-S 125mL extractor system. The tubulation O.D. on the condenser is 10mm....
Biology Products: