The Java Sea

Recently in the news due to the crash of Air Asia Flight 8501, the Java Sea is the southern section of a vast shallow sea that extends south...

07:06

The Nature of Hanging Valleys

A hanging valley is generally defined as a stream or glacial valley that ends abruptly atop the steep wall of a deeper valley or sea cliff. ...

05:45

Africa's Aquatic Dinosaur

Last evening, NOVA , on PBS, focused on the discovery and evaluation of Spinosaurus fossils, the largest carnivorous dinosaur yet unearthed ...

07:58

Gonzalo rakes Bermuda

Forty million years ago, Bermuda, 640 miles ESE of Cape Hatteras, North Carolina, was part of a volcanic island chain that towered above the...

12:27

Tragedy on Mount Ontake

Japan sits at the intersection of four major tectonic plates, making that country especially prone to earthquakes, tsunamis and volcanic act...

06:16

Cuivre River State Park

The West Fork of the Cuivre River rises south of Benton City, Missouri, while its North Fork rises west of Bowling Green; these primary fork...

06:12

The Laurentides of Quebec

The Laurentides, also known as the Laurentian Mountains, run across southwestern Quebec, from the area northeast of Quebec City to the regio...

08:52

The St. Lawrence River

The St. Lawrence River of eastern Canada flows northeastward for 744 miles, from the eastern end of Lake Ontario to the North Atlantic Ocean...

11:46

Rearranging California

Anyone interested in the geologic evolution of California is advised to read Assembling California by John McPhee, published in 1993, which...

07:45

Missouri's Pinnacles

Silver Fork Creek rises on the Glaciated Plain of north-central Missouri, a few miles southwest of Centralia; snaking southwestward, this st...

05:02

Front Range Geology

During the Cretaceous Period, 135 to 65 million years ago (MYA), a shallow sea stretched from the Texas Gulf Coast to British Columbia, cove...

05:05

Geology of Rio's Domes

Watching coverage of the World Cup, one is struck by the spectacular natural setting of Rio de Janeiro, Brazil, hemmed in and partly bisecte...

14:32

An Outlier of Appalachia

Driving southwest on I-65 from Louisville, Kentucky, one soon climbs from the Devonian sediments of  Greater Louisville into the early Missi...

11:04

Paynes Prairie Basin

Just south of Gainesville, Florida, Interstate 75 crosses a broad valley covered by a shrubby grassland.  This is the western portion of the...

06:19

The Escalante River

The upper tributaries of the Escalante River rise on the Aquarius Plateau of southern Utah, a mesa capped by Tertiary volcanic rock and flan...

08:56