Geoscience News

Researchers Finally Decode Internal Structure of Kerogen

Using electron tomography, Pellenq et al probed a sample of kerogen to determine its internal structure. At left, the sample as seen from the outside, and at right, the detailed 3D image of its internal pore structure. Image credit: Pellenq et al, doi: 10.1073/pnas.1808402115.
Nov 14, 2018 by News Staff

Kerogen is a waxy, insoluble organic substance dispersed in sedimentary rocks and is the precursor of oil and gas. In a new study, published in the Proceedings of the National Academy of Science, researchers from MIT and elsewhere have captured 3D images of kerogen’s internal structure, with a level of detail more than 50 times greater than has been previously achieved. Using electron tomography, Pellenq et al probed a sample of kerogen to determine...

read more...
This image of the rectangular iceberg was taken during an Operation IceBridge flight over the northern Antarctic Peninsula on October 16, 2018. Image credit: Jeremy Harbeck, NASA.

NASA’s IceBridge Researchers Find Rectangular Icebergs in Southern Ocean

Oct 24, 2018 by News Staff

Members of the Operation IceBridge, NASA’s decade-long airborne survey of polar ice, spotted two rectangular icebergs during a flight over the northern...

The population of Easter Island in pre-historic time is believed to have numbered in the thousands although typical perennial sources of drinking water are nearly absent from the island. Image credit: Thomason Jiang.

Ancient Easter Islanders Collected Brackish Water from Ocean’s Edge, Researchers Claim

Oct 11, 2018 by News Staff

Ancient inhabitants of Easter Island (Rapa Nui) survived periods of drought due to their utilization of brackish groundwater discharge that surfaces buoyantly...

An artistic conception of the early Earth. Image credit: Simone Marchi / NASA.

Plate Tectonics Was Active from Earth’s Very Beginning, Study Suggests

Oct 1, 2018 by News Staff

New research overturns previous scientific beliefs that Earth’s tectonic plates were developed over the course of billions of years. An artistic conception...

The Reference Elevation Model of Antarctica shows the continent in stunning detail. Image credit: National Geospatial-Intelligence Agency.

New High-Resolution Map of Antarctica Unveiled

Sep 13, 2018 by News Staff

A team of cartographers and researchers from the University of Minnesota and the Ohio State University has produced a high-resolution terrain map of Antarctica...

Mount St. Helens in 2007. Image credit: Michael Adams / CC BY-SA 3.0.

Geoscientists May Have Solved Mount St Helens Mystery

Sep 5, 2018 by News Staff

Oregon State University geophysicist Adam Schultz and co-authors believe they may have solved the mystery of why Mount St. Helens, a volcano located in...

Strong Thermal Emission Velocity Enhancement. Image credit: Megan Hoffman.

STEVE: Recently Discovered Type of Aurora Is Not Aurora At All

Aug 22, 2018 by News Staff

Recently, the scientific community stumbled upon a rare atmospheric phenomenon called Strong Thermal Emission Velocity Enhancement (STEVE) that has been...

O’Malley et al find quakes can systematically trigger other ones on opposite side of the globe. This image shows a high school running track in Taiwan crossed by the Chelungpu fault in an earthquake in September 1999. Image credit: Bob Yeats, Oregon State University.

Powerful Earthquakes Can Trigger Other Ones on Opposite Side of Earth, New Research Shows

Aug 9, 2018 by News Staff

A big earthquake can not only cause other quakes, but large ones, and on the opposite side of our planet, according to new research from Oregon State University. O’Malley...

Antarctica. Image credit: Robyn M.

Carbon Dioxide ‘Leak’ in Southern Ocean May Have Warmed Earth for 11,000 Years

Aug 1, 2018 by News Staff

The Earth’s oceans lock away atmospheric carbon dioxide, but a ‘leak’ in the Southern Ocean, which surrounds Antarctica, brings the greenhouse gas...

Earth-Moon system. Image credit: Comfreak.

Meghalayan: Collapse of Ancient Agricultural Civilizations Defines Holocene’s Youngest Stage

Jul 18, 2018 by News Staff

The Meghalayan, the youngest stage of the current Holocene epoch, began at the time when ancient agricultural societies experienced an abrupt and critical...

Professors Meyers and Malinverno reconstructed the deep history of Earth’s relationship to the Moon. Image credit: Jonny Lindner.

Moon is Making Days on Earth Longer: Study

Jun 12, 2018 by News Staff

Around 1.4 billion years ago, a day on Earth lasted approximately 18.7 hours, according to a study published in the Proceedings of the National Academy...

The Leaning Tower of Pisa. Image credit: Mark Skillen.

Engineers and Soil Scientists May Have Solved Mystery of Pisa’s Leaning Tower

May 9, 2018 by News Staff

The Leaning Tower of Pisa, or simply the Tower of Pisa, is a bell tower of the Cathedral of the Italian city of Pisa, known worldwide for its unintended...

An artist’s impression of a ‘Snowball Earth.’ Image credit: NASA.

‘Snowball Earth’ Resulted from Plate Tectonics, Geologists Say

May 8, 2018 by News Staff

A team of geologists at the University of Texas at Dallas and Austin has put forward an intriguing new hypothesis that links the dawn of plate tectonics...

Gravity of Venus and Jupiter Elongates Earth’s Orbit Every 405,000 Years

May 8, 2018 by News Staff

A research team led by Rutgers University’s Professor Dennis Kent has documented a gradual shift in Earth’s orbit that repeats regularly every 405,000...

This image shows curious holes in Arctic sea ice, located about 50 miles (80.5 km) northwest of Canada’s Mackenzie River Delta. Image credit: John Sonntag / NASA’s Operation IceBridge Mission.

Mysterious Holes in Beaufort Sea Ice Puzzle Researchers

Apr 25, 2018 by News Staff

On April 14, 2018, scientists working on NASA’s Operation IceBridge — a multi-year airborne science mission to study changing ice conditions at...

If an industrial civilization had existed on Earth many millions of years prior to human era, what traces would it have left and would they be detectable today? Image credit: Michael Osadciw, University of Rochester.

Silurian Hypothesis: Were There Industrial Civilizations on Earth before Humans?

Apr 17, 2018 by News Staff

How do we really know there weren’t previous civilizations on our planet that rose and fell long before humans appeared? That’s the question posed...

A cold and windy spring night on the vast landscape of the Devon Ice Cap where two subglacial lakes are lurking 1,805 to 2,460 feet (550-750 m) below the surface. Image credit: Anja Rutishauser.

Geophysicists Discover Two Salty Subglacial Lakes in Canadian Arctic

Apr 12, 2018 by News Staff

An international team of geophysicists has discovered two hypersaline lakes beneath the Devon Ice Cap, one of the largest ice caps in the Canadian Arctic. A...

Periods of extreme cold winter weather and perilous snowfall could be linked to the solar cycle. Image credit: NASA’s Goddard Space Flight Center.

Extreme Cold Winter Weather Can Be Linked to Solar Cycle

Mar 26, 2018 by News Staff

Pioneering new research from the University of Exeter, UK, has revealed when the 11-year solar cycle is in its ‘weaker’ phase, there are warm spells...

2-Billion-Year-Old Sea Salt Captures Earth’s ‘Great Oxidation’

Mar 23, 2018 by News Staff

An international research team led by a Princeton University scientist has found that the rise in oxygen that occurred about 2.3 billion years ago (Paleoproterozoic...

Diamond from South Africa. Image credit: James St. John / CC BY 2.0.

Small Inclusions of Unique Ice in Diamonds Indicate Water Deep in Earth’s Mantle

Mar 12, 2018 by News Staff

An international team of scientists from the United States and Canada has discovered the first direct evidence that aqueous pockets may exist as far as...

© 2011-2025. Sci.News. All Rights Reserved. | Back to top