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photo contest slideshow
Visiting goose
Hasidism
Castle Klis in Croatia
Bike Ride Views
Perched
The beach guard
Ponte Vasco da Gama
Old pottery
Convento do Carmo
The old village
Single tree in the middle of arid mountains
Base Camp
The Priest
Abandoned Child of my city
Kolkata Dondi
Diwali on railtrack
Elephant Safari
Pink Girl
Ritual
Kolkata Street at Night
Kalipuja
Kalipuja at Kolkata
Rail Journey
16th Annual Smithsonian.com Photo Contest
Base Camp

The mountain was created by the subduction of the Nazca Plate beneath the South American Plate. Aconcagua, used to be an active stratovolcano (from the Late Cretaceous or Early Paleocene through the Miocene), and consisted of several volcanic complexes, on the edge of a basin with a shallow sea. However, sometime in the Miocene, about 8 to 10 million years ago, the subduction angle started to decrease resulting in a stop of the melting and more horizontal stresses between the oceanic plate and the continent, causing the thrust faults that lifted Aconcagua up off its volcanic root. The rocks found on Aconcagua’s flanks are all volcanic and consist of lavas, breccias and pyroclastics. The shallow marine basin had already formed earlier (Triassic), even before Aconcagua arose as a volcano. However, volcanism has been present in this region for as long as this basin was around and volcanic deposits interfinger with marine deposits throughout the sequence. The colorful greenish, blueish and grey deposits that can be seen in the Horcones Valley and south of Puente Del Inca, are carbonates, limestones, turbidites and evaporates that filled this basin. The red colored rocks are intrusions, cinder deposits and conglomerates of volcanic origin

TAGS: Argentina, Camp, Climbing, Snow, Travel

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Esfahan, Iran
Member since 2017
Photo Information
Copyright:
© Amin Dehghan.
All rights reserved.
Image Source: digital
Date Taken: 12.2016
Filed Under: Travel
Camera Information
Date Uploaded: Nov. 23, 2018, 12:44 p.m.
Camera Make: Canon
Camera Model: Canon PowerShot D30
Focal Length: 5mm
Shutter Speed: 1/800
Aperture: f8
ISO: ISO100
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