Field Trips

Before and After the Meeting

A benefit of having the meeting in Mendoza is the opportunity to attend several field trips that are directly related to the meeting themes. A one-day, mid-meeting field trip will be open to all attendees.

Field trips to Patagonia before the meeting and to Puna and Flat slab region after the meeting will allow participants to attend more than one if they choose.

Mid-Conference Field Trip, Wednesday, 5 April 2006

Main and Frontal Andean Cordillera near Southern Boundary of Pampean Shallow Subduction Zone (403)
All participants are invited to attend.
Cost is included in the full-meeting registration fee.
Guest/Spouse or Field-Trip only registrants must pay the additional US$20 field-trip cost.
Leaders: Members of the University of Buenos Aires Laboratorio de Tectónica Andina group.
Travel from Mendoza to Las Cuevas on the Chilean border. The trip will cross the Andes from the western Precordillera to the Main Cordillera at the southern margin of the Chilean flatslab region. See neotectonic features, inverted Triassic normal faults, the Neogene Aconcagua fold-and-thrust belt and related basin sediments, Mesozoic to Neogene magmatic units, and glacial features. Maximum elevation reached will be less than 3000 meters.

Pre-Meeting:

27 March-1 April 2006
Ridge-Trench Collision — East of the Chilean Triple Junction (401)
Leaders: Miguel Haller, Puerto Madryn, Argentina; Mathew Gorring, Montclair State, New Jersey, USA
Cost: US$850; ARS$2000. Trip begins in Calafate, Argentina, and ends in Balmaceda, Chile. Travel to and from these cities not included. See daily itinerary for more information.
A transect from Argentine Patagonia through the Patagonian Andes east of where the Chile Ridge has recently collided with the Chile Trench. Features to be examined include the backarc basalt fields, the Patagonian slabmelt adakites, the Austral fold and thrust belt and related sedimentary basins, and forearc margin deformational and magmatic features.
27 March-1 April 2006
Andean Cordillera and Backarc of Northernmost Patagonia and the South-Central Andes (~38°S to 33°S) (402)
Leaders: Tomas Zapata (principal leader), Repsol YPF, Argentina; Gonzalo Zamora; Andrés Folguera
Cost: US$500; ARS$1250. The field trip will depart from city of Neuquén on Monday 27 March, and will end in the city of Mendoza on Saturday 1 April. There is a limit of 15 participants due to bus space.
On this trip we'll look at the Andean deformation processes that have taken place in the backarc of the Southern Volcanic Zone in the Neuquén Basin (the most prolific hydrocarbon province of Argentina) since the Upper Cretaceous. Changes in plate boundary conditions have controlled the deformational style and the magmatic distribution and geochemistry. Both extensional and contractional deformational features will be observed. One aspect of the trip will be look at evidence for Miocene to Recent shallowing and steepening of the subducting Nazca plate.

Post-meeting:

8-13 April 2006
Evolution of the Argentine-Chilean Flatslab Region over the Shallowly Subducting Nazca Plate (404)
Principal Leader: Victor Ramos, University of Buenos Aires
Cost: US$500; ARS$1250.
Five-day trip, departing and returning to Mendoza.
Transect across the Argentine-Chilean flatslab from Sierras Pampeanas to Chile. Features to be seen are block-faulted Sierras Pampeanas, foreland basin deposits, Precordillera fold and thrust belt, minor Miocene magmatic centers, Calingasta Valley, and Frontal and Main Cordilleras.
9-15 April (8 April is a travel day)
Plateau Uplift — Central Andean Puna Plateau and southern Central Volcanic Zone (405)
Principal Leaders: Beatriz Coira, University of Jujuy, Argentina; Constantino Mpodozis, Sociedad Internacional Petrolera, S.A., Chile.
Cost: US$700; ARS$1750. Transportation not included; departing from Salta, Argentina on Sunday morning April 9, ending in Copiapó, Chile on Saturday night, April 15.
Central Andean Puna plateau: Features to be examined include the Puna plateau; giant young ignimbrites; young mafic lava flows; normal, strike-slip, and reverse faults; backarc basin deposits; the southernmost Central Volcanic Zone; and Miocene volcanic evolution east of a migrating arc front.

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