Navigation Links
New geology research explores intriguing questions
Date:12/18/2013

that 2,500 million years ago only 3% of Earth's surface area was dry. A new geochemical approach to address this issue utilizes the distribution of rare trace elements (zirconium, hafnium, and rare earth elements) and the isotopic composition of hafnium (Hf) and neodymium (Nd) in ancient seawater. Unusually pure iron-rich chemical sediments (banded iron-formation, BIF) from Temagami, Ontario, Canada, are an archive of 2,700 million years-old seawater, which allows us to extend the Hf isotope record of seawater back in time to the Early Earth's ocean. The Temagami BIF shows that 2,700 million years ago, seawater was anomalously enriched in the radiogenic Hf-176 isotope, whereas its Nd isotopic composition was normal. This reveals that the same decoupling of Hf and Nd isotopes that is observed in the modern ocean, did already persist 2,700 million years ago. This required the existence of landmasses that were subjected to terrestrial erosion and weathering, indicating that already 2,700 million years ago, large areas of dry land were emerged above sea level and exposed to wind and rain.


Basin inversion in central Taiwan and its importance for seismic hazard
Giovanni Camanni et al., Institute of Earth Sciences Jaume Almera, ICTJA-CSIC, Lluis Sole i Sabaris s/n, 08028 Barcelona, Spain, gcamanni@ictja.csic.es; camannini@gmail.com. Posted online ahead of print on 13 Dec. 2013; http://dx.doi.org/10.1130/G35102.1.

On 27 March 2013, a 6.2 ML earthquake occurred at ~20 km depth in eastern Nantou, central Taiwan, below the ~10-km-deep detachment fault, which is thought to be the deepest level of deformation in this part of the mountain belt. In this paper, Giovanni Camanni and colleagues combine geological and earthquake seismicity data to determine a new model for the structure of cent
'/>"/>

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

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
2. From 503-million-year-old fungi to recent earthquakes: New Geology posted ahead of print
3. Sandy beaches, hydrocarbon reservoirs, tectonic tilting: Its all about geology
4. Geosphere: How geology, technology, modeling, and mapping see into Earths past and present
5. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
6. GEOLOGY adds 30 new articles online
7. GEOLOGY speeding top science to online platform
8. GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury
9. GEOLOGY starts 2013 with 25 new articles posted online ahead of print
10. New Geology study raises questions about long-held theories of human evolution
11. The Geological Society of America Journal Geology: Dynamic geoscience
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New geology research explores intriguing questions
(Date:8/4/2015)... ) today reported financial and operating results for the second quarter ... quarter contract revenue of $ 85.2 million, a ... of 26 % , Second quarter adjusted ... royalties in the current quarter , Operating cash ... to present another strong financial quarter, with all our divisions achieving ...
(Date:7/31/2015)... , 31 de julho de 2015 ... www.icg-10.org ) será realizada pela BGI de 22-25 de ... . A conferência está celebrando seu 10 ... 2006, a ICG se tornou uma das reuniões mais ... dos encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
(Date:7/31/2015)... OXFORD, Conn. , Jul. 31, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... announces that it has filed provisional patent 62/198989 for ... This invention highlights a method to advance crypto-currencies ... technology by introducing a common, uniform way to manage ...
Breaking Biology News(10 mins):AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4
... the Carnegie Institution's Department of Plant Biology have ... nutrient regulation—neighboring pore-like structures at the cell's surface ... vital nutrient, nitrogen. It is the first time ... molecules is essential to this regulation. Since plants, ...
... don’t necessarily rest quietly until invading bacteria lock onto ... action, as previously thought. In a new paper, University ... barge inside these guard cells and independently initiate a ... ahead of print in the April issue of the ...
... and smiling, but this cheerful demeanor masks serious neurological ... ,ew research in mice, however, suggests that many ... Weeber, Ph.D., and colleagues reversed the neurological deficits in ... inhibition of CaMKII, an enzyme highly expressed in brain ...
Cached Biology News:New mechanism for nutrient uptake discovered 2New mechanism for nutrient uptake discovered 3Microbes start immune response by sneaking inside cells 2Angelman syndrome deficits rescued in mice 2Angelman syndrome deficits rescued in mice 3
(Date:8/25/2015)... ST. PETERSBURG, Fla. , Aug. 25, 2015 ... services, announced today that it has been awarded ... for Quality Assurance (NCQA). NCQA ... healthcare quality. NCQA accredits and certifies a wide range ... practices in key areas of performance. ...
(Date:8/25/2015)... CA (PRWEB) , ... August 25, 2015 , ... Temarry ... hazardous waste streams from all Federal Government facilities. As part of the DLA’s ongoing ... strict regulations, each facility is audited to ensure proper compliance. , In fact, any ...
(Date:8/25/2015)... Aug. 25, 2015 MitoQ Ltd, the ... the latest addition to the brand,s growing portfolio ... comprehensive and highly targeted variation of MitoQ,s original ... sugar and insulin levels, weight management and key ... in MitoQ, was developed at Otago University, Dunedin. ...
(Date:8/25/2015)... JOLLA, Calif. , Aug. 25, 2015 /PRNewswire/ ... ), a biopharmaceutical company leading the discovery and ... the appointment of Michael Huang , M.D. ... an experienced drug developer with proven success in ... commercialization in a wide range of therapeutic areas. ...
Breaking Biology Technology:InformedDNA Achieves NCQA Utilization Management Certification 2Temarry Recycling Passes Defense Logistics Agency Audit With Flying Colors 2MitoQ Launches Revolutionary NZ-Developed Supplement to Support Blood Sugar Balance 2MitoQ Launches Revolutionary NZ-Developed Supplement to Support Blood Sugar Balance 3MitoQ Launches Revolutionary NZ-Developed Supplement to Support Blood Sugar Balance 4Regulus Appoints Michael Huang, M.D. as Vice President, Clinical Development 2Regulus Appoints Michael Huang, M.D. as Vice President, Clinical Development 3Regulus Appoints Michael Huang, M.D. as Vice President, Clinical Development 4Regulus Appoints Michael Huang, M.D. as Vice President, Clinical Development 5
... ImQuest Life Sciences today presented important new ... small molecules as antiviral agents at the 13th ... meeting held last week in Washington D.C. ... inhibitors of HBV replication, with two compounds yielding ...
... Pharmaceuticals, Inc. (NASDAQ: ANPI , TSX: ... and Restated Distribution and License Agreement with its ... the Amended and Restated Distribution and License Agreement, ... Baxter initially entered into a Distribution and License ...
... ST. JOSEPH, Mich., March 31 GeneGo, Inc., the ... Webb, Ph.D., director of the Program of Translational Medicine ... the MetaMiner Oncology Partnership Program. The goal of ... pathway analysis platform built by experts in the ...
Cached Biology Technology:ImQuest Presents Data on the Anti-Hepatitis B Virus Activity of Pyrimidinediones at the 13th ISVHLD Meeting in Washington D.C. 2Angiotech Pharmaceuticals, Inc. announces License Agreement with Baxter International Inc. 2Angiotech Pharmaceuticals, Inc. announces License Agreement with Baxter International Inc. 3Angiotech Pharmaceuticals, Inc. announces License Agreement with Baxter International Inc. 4Van Andel Institute Joins the MetaMiner Oncology Partnership Program 2Van Andel Institute Joins the MetaMiner Oncology Partnership Program 3