Taxonomy term

travels in geology

Getting there and getting around Idaho

If you’re interested in a trip down the Main Salmon, you have two options: put a trip together yourself, or hire a professional outfitter to take you.

06 Jun 2018

Travels in Geology: Rafting the Salmon River through the Idaho Batholith

Rafting down the Main Salmon River, which courses north and then west across northern Idaho, takes you by Precambrian metamorphics and the granites of the Idaho Batholith. Six to eight days later, your trip concludes as you float past what was once the edge of North America, and over former island arcs sutured onto the continent during the Mesozoic.
06 Jun 2018

Oceanic crust in all its glory

Our loop drive through the high Hajar Mountains boasted excellent exposures of every oceanic crustal layer. One good exposure of the sequence of mantle rocks is found in the hills surrounding Oman’s capital city Muscat. They consist of a variety of peridotite called harzburgite, which is the pyroxene-depleted residue left behind after basaltic magma is extracted. That extracted magma forms the oceanic crust, whose characteristic rock sequence is, from bottom to top: 1) dark, layered gabbro overlain by massive gabbro (the intrusive equivalent of basalt that comprises solidified magma chambers); 2) sheeted basaltic dikes (the conduits that transported lava from the magma chambers up to the ocean floor); and 3) bulbous pillow lavas, which form when basalt erupts directly into seawater.

06 May 2018

Travels in Geology: Northern Oman: Stunning canyons, towering dunes and the world's largest ophiolite

The small, politically stable sultanate of Oman hosts the world’s biggest and most intact ophiolite — a rare slice of oceanic crust emplaced on land — as well as stunning canyons, turquoise swimming holes, lush palm oases, Bronze Age tombs, endangered sea turtles and endless fields of sand dunes.
 
06 May 2018

Getting there and getting around the Causses

Toulouse is the best gateway to the Causses region. Toulouse-Blagnac Airport hosts plenty of flights to connecting cities in Europe, but no direct flights from the United States. Rent a car at the airport and head north to explore the region. The main highway going north to the Causses is well maintained, with fueling stations along the way that offer everything a traveler might need, including showers. Figuring out how to pay for gasoline was tricky — but that’s part of the adventure of travel.

06 Apr 2018

Travels in Geology: Underground awe in France: The caves of the Causses

The Causses du Quercy region in south-central France has been transformed into a karstic wonderland by the slow dissolution of limestone. The resulting caves, which served as shelters for early humans who left their bones, tools and art for us to ponder, are both geologically and paleoanthropologically fascinating.

06 Apr 2018

Travels in Geology: Corsica: A fusion of cultures on the Mediterranean's most mountainous isle

The rugged topography of the island of Corsica, off the coast of France and Italy, is a blend of rocks of very different ages and origins thrust together during one of Earth's great tectonic uphevals. 
09 Mar 2018

Travels in Geology: Las Vegas: The scenery beyond the slots

Beyond the Strip lie southern Nevada’s craggy limestone peaks, colorful sandstone canyons, and enormous conservation areas that, despite the searing desert heat, harbor a tremendous diversity of plants and wildlife. From soaring summits and graceful bighorn sheep to prehistoric petroglyphs, this desert oasis has a lot to offer the geo-minded traveler.
14 Feb 2018

Getting There and Getting Around Las Vegas

McCarran International Airport is the main gateway for exploring Las Vegas and the surrounding area. Except for sights along the Strip, it’s necessary to rent a car to see the attractions described here. If you fly in, you can rent a vehicle at the airport or take a shuttle or taxi into the city and rent a car as needed. Although all of these sites are open year-round, the best times of year to visit are in the spring and fall. In winter, it’s not possible to hike high in the Spring Mountains due to snow, and in summer the valley heat can be stifling. There are currently no visitor facilities or infrastructure at Tule Springs National Monument, but you can catch a glimpse of the fossil beds near one of two National Park Service signs, one located at the intersection of Moccasin Road and Durango Drive, and the other where North Decatur Boulevard meets Horse Drive.

14 Feb 2018

Travels in Geology: Roaming the rocky coastline of Downeast Maine

Maine is more than moose sightings, blueberry picking and lobster rolls. Explore the granite geology, scenic hiking trails and local color of the Downeast region, which spans the state’s northeastern coast, from Bar Harbor to the Canadian border.
11 Jan 2018

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