Navigation Links
Ancient minerals: Which gave rise to life?
Date:11/25/2013

Washington, D.C. Life originated as a result of natural processes that exploited early Earth's raw materials. Scientific models of life's origins almost always look to minerals for such essential tasks as the synthesis of life's molecular building blocks or the supply of metabolic energy. But this assumes that the mineral species found on Earth today are much the same as they were during Earth's first 550 million yearsthe Hadean Eonwhen life emerged. A new analysis of Hadean mineralogy challenges that assumption. It is published in American Journal of Science.

Carnegie's Robert Hazen compiled a list of every plausible mineral species on the Hadean Earth and concludes that no more than 420 different mineralsabout 8 percent of the nearly 5,000 species found on Earth todaywould have been present at or near Earth's surface.

"This is a consequence of the limited ways that minerals might have formed prior to 4 billion years ago," Hazen explained. "Most of the 420 minerals of the Hadean Eon formed from magmamolten rock that slowly crystallized at or near Earth's surfaceas well as the alteration of those minerals when exposed to hot water."

By contrast, thousands of mineral species known today are the direct result of growth by living organisms, such as shells and bones, as well as life's chemical byproducts, such as oxygen from photosynthesis. In addition, hundreds of other minerals that incorporate relatively rare elements such as lithium, beryllium, and molybdenum appear to have taken a billion years or more to first appear because it is difficult to concentrate these elements sufficiently to form new minerals. So those slow-forming minerals are also excluded from the time of life's origins.

"Fortunately for most origin-of-life models, the most commonly invoked minerals were present on early Earth," Hazen said.

For example, clay mineralssometimes theorized by chemists to trigger interesting reactionswere certainl
'/>"/>

Contact: Robert Hazen
rhazen@carnegiescience.edu
202-478-8962
Carnegie Institution
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Unusual greenhouse gases may have raised ancient Martian temperature
2. Acid raid, ozone depletion contributed to ancient extinction
3. Ancient, modern DNA tell story of first humans in the Americas
4. Visualizing the past: Nondestructive imaging of ancient fossils
5. A new scorpion species from ancient Lycia
6. Reading ancient climate from plankton shells
7. The mysterious scarab beetles: 2 new species of the endangered ancient genus Gyronotus
8. Lampreys provide hints to ancient immune cells
9. Ancient whale coprolites, fault slickensides, shergottites, Ediacara, and Cascadia
10. Extinct ancient ape did not walk like a human, study shows
11. Study reveals ancient jigsaw puzzle of past supercontinent
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ancient minerals: Which gave rise to life?
(Date:11/21/2014)... , Nov. 20, 2014 C-Labs LLC, a ... Internet of Things (IoT), today announced the appointment of ... operating officer. Previously a strategic advisor to the firm, ... operations. Mr. Traynor is based out of the C-Labs ... reports to Chris Muench , Chief Executive Officer. ...
(Date:11/18/2014)... WASHINGTON , Nov. 18, 2014  The ... Security Industry Association today jointly announce the formation ... and release of its Identity and Biometric ... (Framework). The Framework received official support from BORDERPOL, ... governments to improve and provide expertise regarding border ...
(Date:11/18/2014)... Nov. 17, 2014 The Parenteral Drug Association (PDA) ... agencies will speak and at least seven more will participate ... the Omni Shoreham Hotel in Washington D.C. ... to have significant support from the regulatory agencies in ... in our effort to help advance the use ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2
... BEDFORD, Mass., April 1, 2011 Aware, Inc. (NASDAQ: ... for the telecommunications and biometrics industries, today announced that Edmund ... and Chief Executive Officer and director of the board of ... Moberg, CFO and Kevin T. Russell, General Counsel have been ...
... for Engineering in Medicine (CEM) -- a bioengineering research ... Teaching Hospital -- has announced it will reconvene its ... organizer Horizon House Ltd.  The event, BioMethods Boston, will ... and expects to draw over 400 senior researchers from ...
... Group, Inc. (OTCBB: MDXG), an integrated developer, manufacturer and ... from human amniotic membrane, announced today the nation-wide launch ... specifically processed to offer a wide variety of wound ... the hiring of Frank Burrows as its Vice President ...
Cached Biology News:Aware, Inc. Announces Resignation of Chief Executive Officer 2Aware, Inc. Announces Resignation of Chief Executive Officer 3Massachusetts General Hospital Center Reignites Methods in Bioengineering Conference 2MiMedx Group Announces Launch of EpiFix™ and Hiring of Vice President, Wound Care 2MiMedx Group Announces Launch of EpiFix™ and Hiring of Vice President, Wound Care 3MiMedx Group Announces Launch of EpiFix™ and Hiring of Vice President, Wound Care 4
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... ARPN) today reported that it has submitted a ... intravenous iclaprim for the treatment of,complicated Skin and ... and,Drug Administration (FDA). Arpida has requested a Priority ... a synthetic diaminopyrimidine which,exhibits a rapidly bactericidal action ...
... the National Institute of Standards and Technology (NIST) have ... the microelectronics of today built from semiconductor compounds and ... molecules. In an upcoming paper in the Journal of ... a single layer of organic molecules can be assembled ...
... Inverness Medical,Innovations, Inc. (Amex: IMA ), a ... the consumer and professional markets, announced,today that as ... worldwide,operations for the purpose of lowering operating costs ... close two facilities in the San,Francisco area which ...
Cached Biology Technology:Arpida Submits New Drug Application for Intravenous Iclaprim for Treatment of Skin Infections 2Arpida Submits New Drug Application for Intravenous Iclaprim for Treatment of Skin Infections 3NIST team proves bridge from conventional to molecular electronics possible 2Inverness Medical Innovations to Close Cholestech, HemoSense and BioStar Facilities 2Inverness Medical Innovations to Close Cholestech, HemoSense and BioStar Facilities 3
... 100 IS System is a compact analysis system ... lasers, optics, fluidics, a controller, advanced digital signal ... compact lab analysis system includes the Luminex 100, ... has a DMF file at the FDA, and ...
... for routine binary separations. Excellent detection is ... UV-Visible variable wavelength detector. Ultra-fine control of ... two highly accurate and precise, high pressure dual ... Chromatograms may be plotted on a printer or ...
... cultured in Minimum Essential Medium (Eagle) with 2 ... of growth. In order to keep the ... in acetone-methanol. The cells are arrayed on ... each wells surface specifically treated to enhance cellular ...
... were cultured in RPMI 1640 with 2 mM ... growth. In order to keep the antigens ... acetone-methanol. The cells are arrayed on a ... wells surface specifically treated to enhance cellular attachment ...
Biology Products: