An invisible flow of groundwater seeps into the ocean along coastlines all over the world. Scientists have tended to disregard its contributions to ocean chemistry, focusing on the far greater volumes of water and dissolved ...
Earth Sciences
Jan 8, 2021
1
781
Millions of years ago, giant sharks three times larger than today's great whites stalked the world's ocean. They're long gone now, but occasionally, someone walking on a beach spots an odd triangular shape in the sand. On ...
Paleontology & Fossils
Jul 21, 2022
0
622
Hair fiber analysis, a forensic crime tool with a questionable past, could soon have a brighter future thanks to the development of a more refined scientific technique that could reveal much about a person's lifestyle. Scientists ...
Analytical Chemistry
Apr 4, 2017
0
17
A new study of the skeleton of an Iron Age man with the first known case of tuberculosis in Britain has shed new light on his origins.
Archaeology
Nov 9, 2020
0
110
(Phys.org)—By studying the origins of different isotope ratios among the elements that make up today's smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, Mark Thiemens and his colleagues ...
Earth Sciences
Feb 20, 2013
1
0
The bodies of Svalbard reindeer are extremely well adapted to their arctic home at 79 degrees N latitude. As the northernmost reindeer population on the planet, they are thick and round, which makes it easier for them to ...
Plants & Animals
Apr 25, 2019
0
6
The Carambolo Treasure is an assemblage of gold items of the first millennium BCE, whose origin has for about 50 years been the epicentre of a heated debate. New chemical and isotopic analyses, carried out by the UPV/EHU's ...
Archaeology
Apr 26, 2018
0
19
A multidisciplinary research group coordinated by the University of Helsinki dated the bones of dozens of Iron Age residents of the Levänluhta site in Finland, and studied the carbon and nitrogen stable isotope ratios. The ...
Archaeology
Apr 24, 2020
0
21
Methane, a chemical compound with the molecular formula CH4, is not only a powerful greenhouse gas, but also an important energy source. It heats our homes, and even seafloor microbes make a living of it. The microbes use ...
Earth Sciences
May 5, 2021
1
1117
(PhysOrg.com) -- Analyzing the isotope ratios of ancient raindrops preserved in soils and lake sediments, Stanford researchers have shown that a wave of mountain building began in British Columbia, Canada about 49 million ...
Earth Sciences
Dec 17, 2010
0
0
