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northwest Peru

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Journal Article
Published: 01 June 2015
Journal of Sedimentary Research (2015) 85 (6): 646-659.
...Angela M. Hessler; Andrea Fildani A bstract : Eocene strata of the Talara forearc basin of northwest Peru contain detrital-zircon (DZ) populations that, when integrated with other provenance indicators, record paleogeographic shifts in the Andean forearc that can be linked to larger-scale tectonic...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 2005
AAPG Bulletin (2005) 89 (11): 1519-1545.
...Andrea Fildani; Andrew D. Hanson; Zhengzheng Chen; J. Michael Moldowan; Stephan A. Graham; Pedro Raul Arriola Abstract In the first comprehensive study of the Talara basin petroleum system of onshore and offshore northwest Peru, we test oil–source rock correlation through molecular biomarker...
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Series: GCSSEPM
Published: 01 December 2001
DOI: 10.5724/gcs.01.21.0755
EISBN: 978-0-9836096-9-8
... the dynamics of the entire sedimentary wedge. Thus, the entire active margin of northwest Peru and offshore in the prolific Talara basin appears to be more active than previously envisioned. Such increased activity affects the petroleum systems of the region. The unique oceanographic-geologic...
Series: GSA Memoirs
Published: 01 January 1981
DOI: 10.1130/MEM154-p351
... With the exception of the lower continental slope, or inner wall of the Peru Trench, normal faulting characteristic of extensional tectonics predominates in the shallow structure from the outer rise on the Nazca plate, across the trench, the contenental margin, the Coastal province...
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1956
AAPG Bulletin (1956) 40 (5): 1028-1031.
...A. J. Knights Abstract Takes exception to the pre-Talara age assigned by Stainforth to the Eocene Cabo Blanco sandstone in northwest Peru, and cites subsurface evidence which demonstrates that the sandstone overlies beds of accepted Talara shale equivalence and is probably middle or upper Talara...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1955
AAPG Bulletin (1955) 39 (10): 2068-2077.
...R. M. Stainforth Abstract Summarizes paleontologic and other evidence for the accompanying revision of age classifications for the principal Tertiary formations of northwest Peru. GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1963
AAPG Bulletin (1963) 47 (1): 1-34.
...John J. Wilson Abstract From Valanginian until Campanian or Maestrichtian time, the Andean belt in central Peru consisted essentially of two parallel northwest-trending troughs separated by a belt of deformed and metamorphosed pre-Mesozoic rocks, the so-called Maranon geanticline. Until the late...
Journal Article
Published: 01 October 1955
Micropaleontology (1955) 1 (4): 301-313.
...Lawrence Weiss Abstract An account of planktonic foraminifers of northwest Peru which are significant guide fossils for beds ranging in age from Cretaceous to Miocene. Formation tables, a range chart of the foraminifers, a systematic list, and descriptions of the species in order of decreasing age...
Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2005
DOI: 10.5382/SP.11.11
EISBN: 9781629490359
... ; Perelló et al., 2003a ; Figs. 3 – 4 ). Cotabambas belongs to the 300-km-long, middle Eocene to early Oligocene Andahuaylas-Yauri belt of southern Peru, a belt originally defined for its magnetite-rich copper skarns ( Bellido et al., 1972 ; Santa Cruz et al., 1979 ; Noble et al., 1984 ) but lately...
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Journal Article
Journal: Economic Geology
Published: 01 June 2013
Economic Geology (2013) 108 (4): 625-639.
...Adam T. Simmons; Richard M. Tosdal; Joseph L. Wooden; Rubén Mattos; Oscar Concha; Stuart McCracken; Timothy Beale Abstract The Paleocene to Eocene southern Peru porphyry belt contains three significant porphyry Cu-Mo deposits at Cuajone, Quellaveco, and Toquepala. Ten new zircon U-Pb Sensitive High...
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Journal Article
Journal: Geology
Published: 01 June 2007
Geology (2007) 35 (6): 515-518.
... on, that of the Fitzcarrald arch bulge (Fig. 5A) . The structural/morphologic Fitzcarrald arch extends from southern Peru to western Brazil and constitutes a major geomorphic feature spreading more than 4 × 10 5 km 2 in Amazonia, occurring at ∼750 km from the trench (Fig. 1) . It extends east of the Subandean thrust...
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Journal Article
Journal: Lithosphere
Published: 19 November 2018
Lithosphere (2018) 11 (1): 3-20.
... newly underplated basaltic crust: The Cordillera Blanca Batholith, Peru : Journal of Petrology , v. 37 , p. 1491 – 1521 , https://doi.org/10.1093/petrology/37.6.1491 . Phillips , G.N. , Wall , V.J. , and Clemens , J.D. , 1981 , Petrology of the Strathbogie batholith: A cordierite...
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Journal Article
Journal: Economic Geology
Published: 01 December 2006
Economic Geology (2006) 101 (8): 1455-1496.
...Jeremy P. Richards; Damien Wilkinson; Thomas Ullrich Abstract The Sari Gunay epithermal gold deposit is located within a mildly alkaline latitic to trachytic volcanic complex in central-northwest Iran. Intrusive and volcanic rocks that host the deposit have been dated at between 11.7 and 11.0 Ma...
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Journal Article
Journal: Economic Geology
Published: 01 November 2010
Economic Geology (2010) 105 (7): 1173-1190.
..., Plate III) ( Figs. 15 , 16 ). The N50°–60°E trend of deposits that form the Yanacocha district occur within the central Andean orogenic belt, a northwest-trending region of deformation that encompasses the entire western half of Peru ( Fig. 1 ). This orogenic belt consists of folded and thrusted...
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Journal Article
Published: 13 January 2015
Bulletin of the Seismological Society of America (2015) 105 (1): 368-386.
... at Pisco, Peru , Bull. Seismol. Soc. Am. 96 , 1634 – 1648 , doi: 10.1785/0120050158 . Olsen K. B. Stephenson W. J. Geisselmeyer A. ( 2008 ). 3D crustal structure and long‐period ground motions from a M 9.0 megathrust earthquake in the Pacific northwest region , J. Seismol. doi...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2005
DOI: 10.5382/SP.11.13
EISBN: 9781629490359
... T he U chucchacua mining district is about 170 km north-northeast of Lima, near the continental divide. Surface elevations range from 4,200 to 5,100 m above sea level ( Fig. 1 ). Fig. 1. Location of the Uchucchacua mine, Peru. The mineralization of Uchucchacua (“little old lady...
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Journal Article
Journal: Geology
Published: 01 January 1988
Geology (1988) 16 (1): 55-58.
...E. Farrar; A. H. Clark; D. J. Kontak; D. A. Archibald Abstract Discordant muscovite and biotite K-Ar dates of samples taken in six transects through the Cordillera Oriental of southeast Peru and northwest Bolivia, combined with 40 Ar/ 39 Ar age spectra, reveal a northwest-trending, structurally...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2007
GSA Bulletin (2007) 119 (11-12): 1506-1520.
.... Hoorn , C. , Aalto, R., Kaandorp, R.J.G., and Lovejoy, N.R., 2006 , Miocene semidiurnal tidal rhythmites in Madre de Dios, Peru: Comment: Geology , Online Forum, p. e98 . Hoorn , C. , Guerrero, J., Sarmiento, G.A., and Lorente, M.A., 1995 , Andean tectonics as a cause for changing...
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Journal Article
Journal: Lithosphere
Published: 01 August 2016
Lithosphere (2016) 8 (4): 396-411.
... isotopic evidence : Lithos , v. 125 , p. 27 – 39 , doi:10.1016/j.lithos.2011.01.004. Petford , N. , and Atherton , M. , 1996 , Na-rich partial melts from newly underplated basaltic crust: The Cordillera Blanca Batholith, Peru : Journal of Petrology , v. 37 , p. 1491 – 1521 , doi...
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Journal Article
Published: 29 June 2012
Geological Magazine (2012) 150 (1): 50-71.
.... 41030423, 40872071 and 41072068), National Basic Research Programme of China (Grant No. 2006CB403502), Graduate Innovation and Creativity Funds of Northwest University, China (Grant Nos. 10DZSY06 and 10YZZ24) and MOST Special Fund from the State Key Laboratory of Continental...
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