Geology – Page 2 – oceanbites

A 2.5 billion year old story about iron in the ocean, told by a rock

New light has been shed on the possibility of an alternative iron sink than previous thought prior to the oxygenation…

Atmospheric Chemistry Biogeochemistry Geology Natural History Volcanoes

One billion and one anaerobic nights: on the journey to atmospheric oxidation

Take a breather, and learn how cyanobacteria struggled to bring the world oxygen.

Climate Change Coastal Management Geology Sea-level Rise

Barrier Island Stability Rooted in Their Plant Life

How stable are the barrier islands that outline many coastal communities around the world? To answer this question, scientists look…

Geology Hazards

Double Whammy: A Second Source of the 2011 Tohoku Tsunami

A powerful offshore earthquake was quickly identified as the source of the catastrophic 2011 Tohoku tsunami, which devastated portions of…

Book Review Climate Change Geology Glaciers Remote Sensing Sea-level Rise

Glacial crevasses: how deep do they go? What does it mean?

The techniques applied here provide a much needed coastal view of the Greenland ice sheets. Work done in previous studies…

Cyclones Geology Hazards Volcanoes

A volcano, a tropical cyclone, and a computer model walked into a room…

Like with bad jokes, timing is everything. The punch line doesn’t make sense if you don’t know the back story,…

Biology Geology Physiology

A “Jaw-dropping” Cambrian Fish!

A 500 million year old primitive fish sheds light on vertebrate evolution and the emergence of jawed fish.

Alternative Energy Chemistry Geology Remote Sensing technology

Need help counting bubbles? Now you can use sound!

Bubbles elicit scenes of childhood summers playing on the front stoop or backyard. On the other hand, put bubbles at…

Biogeochemistry Geology

Volcanic ash, fertilizer for the ocean?

Volcanic ash may be an important source of the valuable micronutrients iron and manganese to phytoplankton populations in areas with…

Geology

Oceanography in space! Using a satellite to profile an extraterrestrial lake

In 2013, a satellite orbiting Saturn passed by its largest moon, Titan. The satellite track offered a rare opportunity to…

Geology

Unlocking the secrets of the Kameni Islands in Santorini, Greece

In Geology 101, professors aim to teach the overarching concept that the present is the key to the past. In…

Biology Climate Change Ecology Geology Paleoceanography

Hello Glaciers, Goodbye Winds!

With the intensification of glaciation in the northern hemisphere approximately 2.7 million years ago, the prominent westerly wind belts responded…

Biogeochemistry Geology

Using satellites to find underwater volcanic eruptions

The purpose of this study was to create a new metric for detecting submarine volcanic eruptions using satellite data. The…

Geology

Now you see it, now you don’t!

BRMs (Burial Recording Mines) are cylindrical instruments that capture 4-D data of small scale sediment position on the sea floor…

Chemistry Geology

A Song of Ice, Fire, and Climate: Could Warming Seas Release Methane from Beneath the Seafloor?

In 2008, scientists were troubled to find methane bubbling up from marine sediments off the coast of a string of…

Geology

First evidence of deep explosive volcanic activity at the Marsili Seamount

The Marsili Seamount is the largest volcanic complex in the Mediterranean area and Europe. Previously thought to have last erupted…

Climate Change Geology Paleoceanography

Reconstructing climate history from sediments in the Gulf of Taranto, Italy

What was the climate like in Southern Italy 10,000 years ago? This question and many more can be answered by…

Geology

If Popocatépetl volcano blows, prepare for a few nights stuck in the airport.

Plinian eruptions have a high degree of material fragmentation, generating high altitude ash plumes that can travel far from the…

Geology

Riding the Waves of Change: A Revised Beach Cycle for Mixed Sand and Gravel Beaches

A seasonal cycle of sand volume for typical sand beaches has been described for decades. This cycle does not hold…

Geology

From the beach to the abyss: A sand grain’s journey at La Réunion Island

The path a grain of sand takes from land to the deep sea is largely made possible by turbidity currents-…