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portrait of Marilyn Fogle in front of book case
Marilyn Fogel, Biogeochemist and “Isotope Queen,” Dies at 69
Fogel mined information from isotopes to explore modern and ancient ecosystems, climatic changes, and evolution.
Marilyn Fogel, Biogeochemist and “Isotope Queen,” Dies at 69
Marilyn Fogel, Biogeochemist and “Isotope Queen,” Dies at 69

Fogel mined information from isotopes to explore modern and ancient ecosystems, climatic changes, and evolution.

Fogel mined information from isotopes to explore modern and ancient ecosystems, climatic changes, and evolution.

geochemistry
Microbial Fossils Found in 3.4-Billion-Year-Old Subseafloor Rock
Ruth Williams | Jul 14, 2021 | 3 min read
The material, now part of an African mountain range, bolsters the idea that hydrothermal veins supported early forms of life.
Calcite crystals covered in small grains of pyrite, with pincers
Signs of Ancient Microbial Life Abundant in Earth’s Crust: Study
Catherine Offord | Jun 3, 2021 | 5 min read
Researchers report chemical and molecular signatures of microbial activity from millions of years ago in mineral samples from abandoned mines in Sweden and nearby countries.
Yarrabubba crater Australia
Australia’s Yarrabubba Asteroid Impact Crater Is Oldest on Earth
Amy Schleunes | Jan 22, 2020 | 2 min read
A new study precisely dates the event to 2.229 billion years ago and suggests that it may have been responsible for ending an ice age.
Fossilized Lipids Confirm Dickinsonia as One of the Earliest Animals
Ruth Williams | Sep 20, 2018 | 3 min read
An analysis of organic material from 500-million-year-old fossils upholds the theory that the mysterious creatures were early forms of animal life.
Even in the Bronze Age, Humans Altered Soil Chemistry
Kerry Grens | Jun 13, 2018 | 1 min read
Ancient bones from Ireland reveal that farming has changed nitrogen composition in land for the last 3,000 years.
Building Blocks of Life May Have Formed in Water Droplets
Ashley Yeager | Oct 23, 2017 | 3 min read
Reactions that generate fundamental components of the cell run smoothly in microdroplets, study shows.
RNA World 2.0
Jef Akst | Mar 1, 2014 | 10+ min read
Most scientists believe that ribonucleic acid played a key role in the origin of life on Earth, but the versatile molecule isn’t the whole story.
 
Green Gold
Tracy Vence | Jan 1, 2014 | 4 min read
It’s been decades since researchers confirmed the presence of gold in plants, but biogeochemical prospecting has yet to catch on.
Life Below the Seabed
Ruth Williams | Mar 14, 2013 | 3 min read
Rock samples from deep within the Earth’s oceanic crust contain chemosynthetic microbial life.
Meteorite hints at life’s origins
Tia Ghose | Jun 9, 2011 | 2 min read
As debate continues to swirl around arsenic-loving bacteria, a space rock yields new astrobiological clues.
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