1-20 OF 135 RESULTS FOR

South Patagonian ice field

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
×Close Modal
Sort by
Journal Article
Journal: Geology
Published: 01 September 2012
Geology (2012) 40 (9): 859-862.
... Be exposure ages from moraines show that outlet glaciers in Torres del Paine (51°S, south Patagonia, Chile) advanced during the time of the Antarctic cold reversal (ACR; ca. 14.6–12.8 ka), reaching a maximum extent by ∼14,200 ± 560 yr ago. The evidence here indicates that the South Patagonian Ice Field...
FIGURES | View All (4)
Series: GSA Field Guide
Published: 01 January 2008
DOI: 10.1130/2008.0013(01)
EISBN: 9780813756134
... Abstract The southern Patagonian Cordillera south of the present location of the Chile Triple Junction (46.5°S) preserves distinctive deformational and backarc magmatic features that are a consequence of a series of northward-propagating ridge collision events that started at ca. 14 Ma...
FIGURES | View All (13)
Journal Article
Journal: Geology
Published: 01 February 2011
Geology (2011) 39 (2): 103-106.
... cluster of outwash cobble ages, we argue the oldest cobble provides a close minimum age constraint for the glacial advance at 600 ± 20 ka (±85 k.y. external). Figure 1. A: Location of Lago Pueyrredón (LP) and Lago Buenos Aires (LBA), North (NPI) and South (SPI) Patagonian ice fields, approximate...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 September 2011
GSA Bulletin (2011) 123 (9-10): 1679-1698.
... of 50°S, the Patagonian fold-and-thrust belt developed on oceanic and attenuated crust of the predecessor Late Jurassic Rocas Verdes rift basin, resulting in a collisional nature to early fold-and-thrust belt development and foreland sedimentation atop rifted South American crust. We identify six...
FIGURES | View All (11)
Journal Article
Journal: GSA Bulletin
Published: 01 November 2005
GSA Bulletin (2005) 117 (11-12): 1596-1614.
... Devonian to Middle Jurassic Staines complex (south of lat 51°S) and the Eastern Andean metamorphic complex (north of lat 51°S) are similar in composition and seem to be contiguous across a narrow fringe west of the south Patagonian ice cap ( Fig. 6 ; Faúndez et al., 2002 ). Both complexes consist...
FIGURES | View All (14)
Journal Article
Journal: Geosphere
Published: 27 October 2017
Geosphere (2017) 13 (6): 1973-1992.
... Chico, Río Negro, Argentina: Late Paleozoic crustal melting in the North Patagonian Massif : Journal of South American Earth Sciences , v. 25 , p. 526 – 546 , doi:10.1016/j.jsames.2007.05.004. Macdonald , D. , Gomez-Perez , I. , Franzese , J. , Spalletti , L. , Lawver , L...
FIGURES | View All (9)
Journal Article
Journal: GSA Bulletin
Published: 01 September 2002
GSA Bulletin (2002) 114 (9): 1159-1173.
... ). The present-day ELA of the North Patagonian ice field at ∼47°S varies from 1200 m on its western side to 1350 m on its eastern side ( Lliboutry, 1999 ). During the Last Glacial Maximum—the second most extensive glacial maximum during the late Cenozoic in Patagonia according to Lliboutry (1999)—Hulton et al...
FIGURES | View All (10)
Journal Article
Journal: Geology
Published: 01 March 2012
Geology (2012) 40 (3): 247-250.
..., and Raphael Worni during field work and analyses. This study reports the application of erosion signals in tree roots to document time series of channel wall erosion in an ephemeral torrent of the Patagonian Andes back to A.D. 1870 and to identify major areas of sediment entrainment during episodic flash...
FIGURES | View All (4)
Journal Article
Journal: PALAIOS
Published: 01 August 2015
PALAIOS (2015) 30 (8): 627-643.
... U. 2010 , Timing and magnitude of Holocene sea-level changes along the middle and south Patagonian Atlantic coast derived from beach ridge systems, littoral terraces and valley-mouth terraces : Earth-Science Reviews , v. 103 , p. 1 – 30 , doi...
FIGURES | View All (9)
Series: GSA Field Guide
Published: 01 January 2016
DOI: 10.1130/2016.0041(01)
EISBN: 9780813756417
... appropriate field effort to studying the problem. Resolution of the Channeled Scabland controversy did indeed come gradually, initially with the documentation by Joseph Thomas Pardee (1871-1960) of ice-dammed Pleistocene glacial Lake Missoula in western Montana as the plausible source for the scabland...
FIGURES | View All (52)
Journal Article
Published: 01 February 2009
Journal of Sedimentary Research (2009) 79 (2): 56-82.
...Lauren P. Birgenheier; Christopher R. Fielding; Michael C. Rygel; Tracy D. Frank; John Roberts Abstract Models of late Paleozoic ice-age climate dynamics have remained enigmatic, in part because preservation of mid- to Late Carboniferous, ice-proximal, Gondwanan glacial deposits is limited to very...
FIGURES | View All (15)
Journal Article
Journal: GSA Bulletin
Published: 01 March 2004
GSA Bulletin (2004) 116 (3-4): 434-450.
... ), a gap between the southern and austral volcanic arcs, which is, not surprisingly, the location of the modern Patagonian Ice Fields ( Fig. 1 ). Moraine crests, associated outwash plains and terraces, and basaltic lava flows were mapped onto a 1:100,000 topographic base and corresponding Landsat...
FIGURES | View All (10)
Journal Article
Journal: GSA Bulletin
Published: 01 May 2016
GSA Bulletin (2016) 128 (5-6): 1000-1023.
... , Surface velocities and ice-front positions of eight major glaciers in the Southern Patagonian ice field, South America, from 2002 to 2011 : Remote Sensing of Environment , v. 139 , p. 50 – 59 , doi:10.1016/j.rse.2013.07.034. Nelson , P.H.H. , 1975 , The James Ross Island Volcanic Group...
FIGURES | View All (14)
Journal Article
Journal: Geology
Published: 01 April 2014
Geology (2014) 42 (4): 347-350.
..., Patagonian Andes, Switzerland, Alaska and New Zealand suggests globally synchronous, centennial-scale cold events. Determining what mechanisms caused late Holocene climate events, such as the Little Ice Age (ca. CE 1300–1850), is critical for understanding the natural variability of modern climate. Various...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 March 2004
GSA Bulletin (2004) 116 (3-4): 308-321.
.... We present new in situ cosmogenic 10 Be, 26 Al, and 3 He exposure ages, supported by limiting 40 Ar/ 39 Ar and 14 C ages, for seven of the youngest moraines east of Lago Buenos Aires, Argentina, 46.5°S, that were deposited by a large outlet glacier of the Patagonian Ice Cap. Following a major...
FIGURES | View All (5)
Series: AAPG Memoir
Published: 01 January 2001
DOI: 10.1306/M74775C19
EISBN: 9781629810621
... with the Alti- plano, or Puna Plateau (P.P.); to the east is the Cordillera Oriental (O.C.). To the south are the North Patagonia Massif (N.P.M.) and Deseado Massif (D.M.), exposing the Patagonian Terrane uplifted basement. The Andes are in the west. The Falkland Islands (Malvinas) Administration...
FIGURES | View All (16)
Journal Article
Journal: Geology
Published: 01 September 2006
Geology (2006) 34 (9): 709-712.
...Daniel Melnick; Helmut P. Echtler Abstract This study examines the response of a forearc to the increase in sediment flux to the trench caused by the onset of glacial denudation in the Patagonian Andes. We investigated shelf-coastal basins in south-central Chile, which generally comprise Eocene...
FIGURES | View All (4)
Journal Article
Journal: Geology
Published: 01 July 2012
Geology (2012) 40 (7): 631-634.
... is located in a mountainous pre-Cordilleran interfluve, and is flanked to the north and south by the Lago Viedma and Lago Argentino Valleys ( Fig. 1B ), which drain Southern Patagonian Ice Field outlet glaciers. The glaciers and associated moraines in the Rio Guanaco Valley are not linked directly...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 05 December 2017
GSA Bulletin (2017) 130 (5-6): 975-998.
... and suggest constant convergence rates of the Patagonian arc against the adjacent South American continental margin. Time-averaged exhumation rates along the Río Rincon anticline (54.6–22 Ma) and along the Río Nutria thrust (46.5–22 Ma) suggest rather low exhumation rates of 1.6–1.2 mm/yr (maximum). The low...
FIGURES | View All (13)
Series: Geological Society, London, Geology of Series
Published: 01 January 2007
DOI: 10.1144/GOCH.5
EISBN: 9781862393936
... of northern Chile, the SVZ of central-south Chile, and the AVZ of southernmost Chile. Pleistocene and Holocene backarc volcanic centres, the westernmost part of the Patagonian plateau basalts, also occur in southern Chile along the border with Argentina. In addition, intraplate oceanic volcanoes form Chilean...
FIGURES | View All (43)