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

Boulder, Colo.--The Geological Society of America's November issue of GEOLOGY contains several potentially newsworthy items. Topics of particular interest include: new evidence for catastrophic extinction of Caribbean rudist bivalves at the K-T boundary; synthesis and interpretation of volcanic activity on Venus; new drill core data from Antarctica suggesting precise dating of the Oligocene-Miocene boundary; and new techniques demonstrating that cellular biochemistry and physiology can be directly studied in fossils hundreds of millions of years old.

Highlights are provided below. Please discuss articles of interest with the authors before publishing stories on their work, and please make reference to GEOLOGY in stories published. Contact Ann Cairns at acairns@geosociety.org for copies of articles and for additional information or other assistance.

GEOLOGY

Which forces drive North America?
G. H. R. Bokelmann, Department of Geophysics, Stanford University, Stanford, California 94305-2215, USA. Pages 1027-1030
Everybody (or almost everybody) agrees that the plates under our feet move. But why do they move, or in other words, which forces drive them? There are two main views on this question: that the plates are driven by forces acting from the side, that is, pulled by subducting slabs and pushed by ridge-oceanic ridges; or that the plates are riding (passively) on mantle convection cells, and thus are driven from below. Unfortunately it has been very difficult to distinguish these two sets of driving forces. This paper addresses the question based on the pattern of deformation within the plates, specifically the North American plate. Seismic anisotropy is a tool that allows us to do so. The orientation of anisotropy we find is indicative of forces acting from below being important. Thus it appears that the North American plate is driven largely by mantle convection, which dr
'"/>

Contact: Ann Cairns
acairns@geosociety.org
303-357-1056
Geological Society of America
21-Oct-2002


Page: 1 2 3 4 5 6 7 8

Related biology news :

1. Tip sheet for the November 25, 2003 Neurology journal
2. Highlights of the November 2003 Journal of the American Dietetic Association
3. November science picks!
4. JCI Table of Contents, November 3, 2003
5. Story tips from the Department of Energys Oak Ridge National Laboratory, November 2003
6. Conference on invasive and alien plants November 2003
7. JCI Table of Contents, November 18, 2002
8. Science picksleads, feeds and story seeds (November 2002)
9. Pan-African Malaria Conference November 17-22 in Arusha, Tanzania
10. Record in research dollars: UH receives $12.3 million in November
11. American Society for Microbiology news tips for November 2000

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/6/2017)... , May 5, 2017 RAM ... announced a new breakthrough in biometric authentication based ... quantum mechanical properties to perform biometric authentication. These new ... semiconductor material created by Ram Group and its ... entertainment, transportation, supply chains and security. Ram Group ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced Design ... will feature emerging and evolving technology through its ... Summits will run alongside the expo portion of the ... panels and demonstrations focused on trending topics within 3D ... design and manufacturing event will take place June 13-15, 2017 ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... They ... a complex biological network, a depiction of a system of linkages and connections ... Korkin, PhD, associate professor of computer science at Worcester Polytechnic Institute (WPI) and ...
(Date:10/12/2017)... , ... October 12, 2017 ... ... announces publication of a United States multicenter, prospective clinical study that demonstrates ... point-of-care diagnostic test capable of identifying clinically significant acute bacterial and viral ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the first-ever genomics analysis platform specifically designed for life science researchers to ... of pioneering researcher Rosalind Franklin, who made a major contribution to the ...
(Date:10/11/2017)... ... ... wash is a basic first aid supply for any work environment, but most personal eye ... first if a dangerous substance enters both eyes? It’s one less decision, and likely quicker ... eye piece. , “Whether its dirt and debris, or an acid or alkali, getting anything ...
Breaking Biology Technology:
Cached News: