HOME >> BIOLOGY >> NEWS
April GEOLOGY and GSA TODAY media highlights

a clue. Preserved in marine mudrocks, these three-dimensional animals are typically flattened onto a single plane. It is as if they had been wrapped in clingfilm (plastic wrap) prior to burial, preventing mud and silt from entering the open spiral of the fossil. The authors consider that this ancient clingfilm was a combination of microbial films and gelatinous marine snow, and think that this now-vanished organic matter carpeted large areas of seafloors then. The nearest modern comparison can be found at the unpleasantly stagnant bottom of the Black Sea.

Phenocrysts versus xenocrysts in the youngest Toba Tuff: Implications for the petrogenesis of 2800 km3 of magma.
James E. Gardner et al. Geophysical Institute and Department of Geology and Geophysics, University of Alaska, Fairbanks, Alaska 99775-7320, USA. Pages 347-350.

Large explosive eruptions of thousands of cubic kilometers of magma represent the most horrific volcanic hazards to man. Understanding how such large bodies of magma accumulate beneath volcanoes could provide valuable insight into such eruptions. The authors have investigated the petrogenesis of the 2800 km3 of erupted magma at the Toba Tuff ~74 ka in Sumatra, Indonesia, using a combination of experimental petrology and 40Ar/39Ar dating of crystals from the tuff. The authors found that some crystals present in the magma do not crystallize experimentally from the magma at known temperatures and pressures. Those same crystals are also not in isotopic equilibrium with others that do grow experimentally. It thus appears that a large population of crystals in the tuff were foreign to the magma. Common grouping of the foreign crystals into clots implies that they came from the same source, most likely the walls of the Toba magma body. Isotopic ages and diffusive modeling suggest that the source of the foreign crystals was at least 1.5 Ma, and that some were entrained as recently as 10 years before the eruption. A new e
'"/>

Contact: Ann Cairns
acairns@geosociety.org
303-357-1057
Geological Society of America
5-Apr-2002


Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Related biology news :

1. APS awards 55 minority travel fellowships to EB 2004 (April 17-21) in Washington, DC
2. National Academies advisory: NAS Annual Meeting April 17-20
3. Physics tip sheet #41 - April 5, 2004
4. JCI table of contents, 2 April 2004
5. Nanotechnology highlights from the ACS national meeting in Anaheim, Calif., March 28-April 1
6. Story tips from the Department of Energys Oak Ridge National Laboratory, April 2004
7. Media invited to attend International Society For Heart & Lung Transplantation meeting April 21-24
8. Experimental Biology 2004 meets in Washington, D.C. April 17-21
9. Science highlights of AAN Annual Meeting in Honolulu March 29 April 5
10. Genes, Brain and Behavior Symposium April 16
11. Science Picks--Leads, Feeds and Story Seeds (April 2003)

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: April GEOLOGY and GSA TODAY media highlights

(Date:3/23/2015)... --  HOYOS Labs , a leading global authentication infrastructure ... Company will demonstrate multiple biometrics-based technologies under its identity ... on March 23 through 25, 2015, in ... IEEE Biometric Open Protocol Standard; free biometrics-based consumer app, ... system. BOPS was invented by HOYOS Labs and contributed ...
(Date:3/20/2015)... , Mar. 19, 2015 Research and Markets ... "Hand Geometry - Global Strategic Business Report" report to ... for Hand Geometry in US$ Thousands. The report provides separate ... Japan , Europe , ... , and Rest of World. Annual estimates and ...
(Date:3/18/2015)... 2015 As mobile payments become more ... wallets and apps continue to be introduced into the market ... mobile payment industry in focus today are:  NXT-ID, Inc. (NASDAQ: ... BABA ), Apple Inc. (NASDAQ: AAPL ), ... (NASDAQ: FB ) NXT-ID, Inc. (NASDAQ: ...
Breaking Biology News(10 mins):HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6
(Date:3/30/2015)... San Francisco, CA (PRWEB) March 30, 2015 ... and tax incentives provided you the government, major companies ... state and local governments setting future mandates for renewable ... power as an option. , Solara Power is a ... to several incentive programs available that allow qualifying homeowners ...
(Date:3/30/2015)...  New Jersey Health Foundation, a not-for-profit organization that ... New Jersey , has committed $1 ... James M. Golubieski , president. Through ... an additional $500,000 will be available for awards of ... projects that demonstrate exciting potential and may lead to ...
(Date:3/30/2015)... 30, 2015  Spherix Incorporated (Nasdaq: SPEX ... fostering and monetization of intellectual property, today provided ... 3:13-cv-03494-M and  Spherix v. Uniden , Case No. ... for the Northern District of Texas ... v. Verizon, Case No. 1:14-cv-00721-GBL-TCB, in the ...
(Date:3/30/2015)... MADISON, Wis. , March 30, 2015 /PRNewswire/ ... 4901) ("Fujifilm") and Cellular Dynamics International, Inc. (CEO: ... a leading developer and manufacturer of fully functioning human ... that the two companies have entered into a definitive ... tender offer to be followed by a second step ...
Breaking Biology Technology:Solara Power Announces Residential Solar Power with No Up-Front Fees 2New Jersey Health Foundation Announces An Additional $1 Million To Fund Innovation and Research Grants in New Jersey 2Spherix Provides Update on Litigation vs. VTech, Uniden and Verizon 2Spherix Provides Update on Litigation vs. VTech, Uniden and Verizon 3Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 2Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 3Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 4Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 5Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 6Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 7Fujifilm Holdings to Acquire Cellular Dynamics International, Inc. 8
Cached News: