Tag Geology

Geologists use radioactive clock to document longest earthquake record

May 1, 2017

UW-Madison geoscience department researchers have peered back in time more than 400,000 years to illuminate a record of earthquakes along the Loma Blanca fault in New Mexico.

Returning adult students honored for overcoming obstacles

April 7, 2017

The winners of the Outstanding Undergraduate Returning Adult Student Award have resumed their academic pursuits after a significant interruption and have attained senior status while handling all the demands of adult life.

Massive, computer-analyzed geological database reveals chemistry of ancient ocean

March 30, 2017

Why did easy-to-see and once-common structures called stromatolites essentially cease forming over the long arc of earth history?

From rocks in Colorado, evidence of a ‘chaotic solar system’

February 22, 2017

New evidence confirms a critical theory of how the planets in our solar system behave in their orbits around the sun, producing big changes in Earth's climate.

Fossil fuel formation: Key to atmosphere’s oxygen?

December 30, 2016

“Why is there oxygen in the atmosphere?" asks researcher Shanan Peters. The high school explanation is 'photosynthesis.' But we’ve known for a long time ... that building up oxygen requires the formation of rocks like black shale."

Life in ancient oceans enabled by erosion from land

September 26, 2016

As scientists continue finding evidence for life in the ocean more than 3 billion years ago, those ancient fossils pose a paradox that raises questions about whether there was more land mass than previously thought.

Cataclysm at Meteor Crater: Crystal sheds light on Earth, moon, Mars

July 26, 2016

In molten sandstone extracted by prospectors a century ago, an international team of scientists has discovered microscopic crystals telling of unimaginable pressures and temperatures when an asteroid formed Meteor Crater in northern Arizona some 49,000 years ago.

10,000-year record shows dramatic uplift at Andean volcano

December 16, 2015

The dramatic finding rested on a simple, painstaking study of the ancient lakeshore, which resembles a bathtub ring.

‘Cabinet of curiosities’ captures nature through work of artists and scientists

February 21, 2014

Of all the places Sierra Swenson expected to end up during her first semester at college, precious few were lined with jars full of preserved reptiles.

Vaterite: Crystal within a crystal helps resolve an old puzzle

April 25, 2013

With the help of a solitary sea squirt, scientists have resolved the longstanding puzzle of the crystal structure of vaterite, an enigmatic geologic mineral and biomineral.