3.7 Billion Years Old fossils discovered on Earth in Greenland rocks
Free Current Affairs to Your Email
Posted on:03 Sep 2016 09:11:13
03 September 2016 Current Affairs: A team of scientists have discovered the world’s oldest stromatolite fossils about 3.7 billion years old in the world’s oldest sedimentary rocks in the Isua Greenstone Belt along the edge of Greenland’s icecap. The findings were published in journal Nature on 31 August 2016.
Led by the Australian University of Wollongong’s (UOW) Professor Allen Nutman, the team's discovery pushes back the previous record by 220 million years and captures the earliest history of the planet.
The discovery of the Isua stromatolite fossils provides a greater understanding of early diversity of life on Earth which could have implications for the understanding of life on Mars.
The Study : A team of Australian geologists made the discovery in July 2012 while carrying out field research in Isua, a remote place in Greenland.One day while working at the field, they came across some outcroppings never seen before.
Upon further assessment, the researchers were able to know they were conical structures, one to four centimeters high.
The outcroppings looked like microbial mats known as stromatolites. The researchers carried out laboratory analysis and found its formations to be 3.7 billion years old. Using radiometric dating, the scientists were able to find out the age of the rocks.
FreshersLive - No.1 Job site in India. Here you can find latest 2017 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.