Navigation Links
UCLA scientists strengthen case for life more than 3.8 billion years ago

ere as old as originally envisioned. We didn't go to Greenland in response to the criticism. We went to learn the age of the rocks and to make a better geologic map of the area than any that existed."

At the time of the 1996 Nature paper, there was no reliable map showing the geology of the area, Manning said. So he created one.

"I wandered around that outcrop for two-and-a-half weeks--it's not a big area--with a clipboard, maps, a compass and grid paper. We mapped it like an archeologist would map it," Manning said. "It became clear that these rocks that hosted life line up into two beautiful, coherent layers. They are not randomly distributed, as you might expect if the alternative interpretation is right. I'm very confident about that. I went to Greenland with some skepticism, but I became more and more confident as time went on that the original interpretation was right."

"It could have gone any way," Harrison said. "We could have placed the claim on much firmer footing, or we could have proved ourselves wrong. We found a much more compelling cross-cutting relationship in the rocks than we originally thought."

The new research is a comprehensive response to the critics, Harrison said.

"We've been holding our fire rather than fire away at each criticism in a piecemeal way," he said. "We've gone back to Greenland and done the study from the ground up, with much more data than existed at the time of the original paper. I'm much more confident today than I was in 1996 about the likelihood that this is evidence of early life. This is not 'smoking gun' evidence--we are not seeing fossils--but in every case, the model has come through with flying colors."

Manning agrees, saying he is confident the rocks contain evidence of ancient life, but "it's not a slam dunk."

Why is there doubt? After more than 3.8 billion years, the rocks are severely damaged.

"They have been folded, distorted, heated and c
'"/>

Source:University of California - Los Angeles


Page: 1 2 3 4 5

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
3. UAB scientists discover the origin of a mysterious physical force
4. Fox Chase Cancer Center scientists identify immune-system mutation
5. Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.
6. U-M scientists find genes that control growth of common skin cancer
7. UCLA scientists transform HIV into cancer-seeking missile
8. RNA project to create language for scientists worldwide
9. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
10. To control germs, scientists deploy tiny agents provocateurs
11. Leprosy microbes lead scientists to immune discovery
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: UCLA scientists strengthen case for life more than billion years ago

(Date:5/21/2013)... 21, 2013 Royal Philips Electronics (NYSE: PHG, ... first portable ultrasound with Philips, industry leading Live 3D ... CX50 xMATRIX with available Live 3D TEE and ICE ... at the EuroPCR, official meeting for the European Association ... Since its launch in 2012, Philips CX50 xMATRIX has ...
(Date:5/21/2013)... the way genes function without changing the underlying ... blood of pregnant women during any trimester, potentially ... the weeks after giving birth, and an opportunity ... findings of the small study involving 52 pregnant ... Molecular Psychiatry . , "Postpartum depression can be ...
(Date:5/20/2013)... also commonly resistant to antimicrobial substances made by ... mBio , the online open-access journal of ... and host antimicrobials LL-37 and lysozyme, which help ... that patients with life-threatening multi-drug resistant infections are ... is a last-line drug for treating several kinds ...
Breaking Biology News(10 mins):Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system 2Genetic predictors of postpartum depression uncovered by Hopkins researchers 2Genetic predictors of postpartum depression uncovered by Hopkins researchers 3Resistance to last-line antibiotic makes bacteria resistant to immune system 2Resistance to last-line antibiotic makes bacteria resistant to immune system 3
... "Basic science and clinical medicine move at different pace ... strategies to manage cancer patients. We need to efficiently translate ... in the clinic." Sherene Loi and Fabrice Andr, ... four major areas: , Molecular pathology, the roots ...
... award-winning research project, funded by the British Heart Foundation (BHF), ... how doctors predict a patient,s risk of having a heart ... a BHF Centre of Research Excellence, in collaboration with the ... of combining PET and CT scanning to image the disease ...
... Mass. A team of kinesiology researchers led by ... recently received a 2.5-year, $975,000 grant through the Navy ... study how the average 100-lb. equipment load carried by ... affects their survivability, likelihood of injury and ability to ...
Cached Biology News:Fourth IMPAKT Breast Cancer Conference 2Fourth IMPAKT Breast Cancer Conference 3Scientists develop new technique that could improve heart attack prediction 2Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers 2
(Date:5/21/2013)... CA (PRWEB) May 21, 2013 ... at the University of California, San Diego for a ... load bearing Gravitic™ MRI (Magnetic Resonance Imaging) with that ... renowned for its continued pursuit of improved healthcare by ... Spinal MRI is an extremely valuable tool for evaluating ...
(Date:5/21/2013)... Lake, MN (PRWEB) May 21, 2013 The ... trade show display solution for sales and marketing teams looking ... Displays describes the kit as “everything you’ll need to ... Fusion Fabric Display Kit comes with a number of displays ... all-around trade booth 20 feet by 20 feet in size. ...
(Date:5/20/2013)... Oven Industries Inc. announces a new ... 5R6-900 benchtop controller has many outstanding user-friendly benefits. Contained ... into the wall as a self-contained temperature control system, ... makes the device unique, as well as highly convenient ... can also be used universally, which allows the user ...
(Date:5/20/2013)... May 20, 2013  Dr. Gerald Zon ... acid research, recently launched a new blog in conjunction ... ( zon.trilinkbiotech.com ), focuses on what,s trending in the ... industry thought leaders, discussions of research presented at conferences ... Dr. Zon (PhD Princeton University 1971) developed ...
Breaking Biology Technology:Vital Imaging Makes Greater Commitment into MRI Research 2Vital Imaging Makes Greater Commitment into MRI Research 3GLM Displays Announces All-in-One Formulate Fusion Fabric Display Kit 2New Laboratory Temperature Controller by Oven Industries 2Dr. Gerald 'Jerry' Zon Launches New Blog for TriLink BioTechnologies 2
... Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) announced today ... review, the Company is initiating a U.S.,Phase ... REOLYSIN(R) in,combination with paclitaxel and carboplatin in ... K-RAS or EGFR-activated tumours. The Principal,Investigator is ...
... /PRNewswire-FirstCall/ - OncoGenex,Pharmaceuticals, Inc. (NASDAQ: OGXI ... that it has granted to Eagle Pharmaceuticals, ... commercialize TOCOSOL(R),Paclitaxel. Under the terms of the ... from future TOCOSOL Paclitaxel sales and a,percentage ...
... Germany, Sept. 1 ,Boston Scientific Corporation (NYSE: ... its landmark SYNTAX trial comparing percutaneous coronary ... Stent,System to contemporary coronary artery bypass graft ... significant differences,between PCI and CABG in rates ...
Cached Biology Technology:/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 2/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 3/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 4OncoGenex Pharmaceuticals announces out-license of TOCOSOL Paclitaxel to Eagle Pharmaceuticals 2OncoGenex Pharmaceuticals announces out-license of TOCOSOL Paclitaxel to Eagle Pharmaceuticals 3Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 2Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 3Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 4Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 5
... coating using advanced automated high throughput microplate processing equipment that ... also accommodate virtually any lot size of the following formats ... 8 and 12 well strips, ... 384 well microplate, ...
...
... Mynox is the first biological ... killing them, and not just ... the only anti-mycoplasma agent that ... virus stocks directly. The cytotoxicity ...
Mynox is intended for research use only. Mynox is used for the elimination of Mycoplasma and Acholeplasma in cell and virus cultures, and other biologicals....
Biology Products: