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Pucara Valley

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Location map of Argentinian basins and the geological units with cicatricos...
Published: 01 December 2013
Figure 1 Location map of Argentinian basins and the geological units with cicatricose spore records mentioned in the text. Stars show the localities studied in this paper: Pucará Valley, Salta Province (Salta Group Basin) and Sierra de Guayaguas, San Juan Province (San Luis Basin).
Image
A)  Digital elevation model (DEM) from NW Argentina showing the distributio...
Published: 14 January 2022
Grandes basin; Ab, Arizaro basin; SdF, Salina del Fraile; SC, Sierra de Calalaste; PF, Purulla Field; CPP, Campo de Piedra Pómez; PV, Pasto Ventura; CV, Calchaquí Valley; LV, Lerma Valley; TV, Tonco Valley; PuV, Pucará Valley. AFT, AHe and ZHe thermocronological data were taken from Deeken et al. 2006
Journal Article
Journal: Economic Geology
Published: 01 November 1990
Economic Geology (1990) 85 (7): 1402–1437.
...Lluis Fontbote; Hendrik Gorzawski Abstract The San Vicente Zn-Pb ore deposit is situated 300 km east of Lima in central Peru, within the Upper Triassic-Lower Jurassic carbonate platform (Pucara Group) at the western margin of the Brazilian Shield. Production during the last 20 years and present...
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Regional geologic setting showing <b>Pucará</b> Group outcrops ( Instituto Geológi...
Published: 01 December 2019
Fig. 6. Regional geologic setting showing Pucará Group outcrops ( Instituto Geológico Minero y Metalúrgico, 2000 ), gypsum occurrences ( Díaz and Ramírez, 2009 ), and the location of the currently known salt domes ( Sempere and Cotrina, 2018 ). MVT = Mississippi Valley-type.
Journal Article
Journal: Economic Geology
Published: 01 December 2019
Economic Geology (2019) 114 (8): 1621–1647.
...Fig. 6. Regional geologic setting showing Pucará Group outcrops ( Instituto Geológico Minero y Metalúrgico, 2000 ), gypsum occurrences ( Díaz and Ramírez, 2009 ), and the location of the currently known salt domes ( Sempere and Cotrina, 2018 ). MVT = Mississippi Valley-type. ...
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Journal Article
Journal: Economic Geology
Published: 01 August 2017
Economic Geology (2017) 112 (5): 1089–1110.
... in central and northern Peru ( Kobe, 1977 , 1982 , 1990a ; Dalheimer, 1990 ; Fontboté, 1990 ; Reid, 2001 ). These mineralizations include Zn-Pb-(Cu-Ag) volcanogenic massive sulfide (VMS) and Mississippi Valley-type (MVT) Zn-Pb deposits. The principal producing mines hosted in the Pucará Group carbonates...
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Journal Article
Journal: Economic Geology
Published: 01 November 1999
Economic Geology (1999) 94 (7): 1067–1092.
...Jorge E. Spangenberg; Lluis Fontbote; Stephen A. Macko Abstract Mississippi Valley-type zinc-lead deposits and ore occurrences in the San Vicente belt are hosted in dolostones of the eastern Upper Triassic to Lower Jurassic Pucara basin, central Peru. Combined inorganic and organic geochemical data...
Image
Typical stratigraphic sections from the Rio Ramis <b>valley</b>, showing the three...
Published: 01 January 2005
Figure 6 Typical stratigraphic sections from the Rio Ramis valley, showing the three dominant types of facies associations (FA) in the river valley. A) Superimposed fine and coarse meandering-river deposits (FA1) from the Puyutira measured section. B) Braided-river deposits (FA2) from
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1969
AAPG Bulletin (1969) 53 (3): 553–567.
..., Laraos. A branch road follows the river canyon from Tinco to Alis, and into Cañete valley. Two important settlements are Yauricocha Mine and the townsite of Cerro de Pasco Corporation and Chaucha townsite and railhead. On the north, another road from Pachacayo passes through Hacienda Cochas...
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Journal Article
Published: 06 July 2021
Journal of the Geological Society (2021) 178 (6): jgs2020-186.
... intercalated with carbonates, referred to here as Triassic Evaporites , overlying a post-Mitu sandstone unit. Toward the Eastern Cordillera, Late Triassic to Early Jurassic marine carbonates with some gypsum lenses of the Pucara Group, characterizing a post-rift regional sag ( Jaillard et al. 1990 ; Rosas...
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Journal Article
Published: 01 January 2005
Journal of Sedimentary Research (2005) 75 (1): 12–28.
...Figure 6 Typical stratigraphic sections from the Rio Ramis valley, showing the three dominant types of facies associations (FA) in the river valley. A) Superimposed fine and coarse meandering-river deposits (FA1) from the Puyutira measured section. B) Braided-river deposits (FA2) from...
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Journal Article
Journal: PALAIOS
Published: 01 December 2014
PALAIOS (2014) 29 (12): 652–668.
... of the uppermost Triassic carbonate ramp, the lowest Jurassic Ferguson Hill Member of the Sunrise Formation records a midshelf habitat dominated by previously unrecognized siliceous sponges for approximately two million years. In addition, the earliest Jurassic strata from the Pucara Group, central Peruvian Andes...
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Journal Article
Journal: Geology
Published: 01 July 2014
Geology (2014) 42 (7): 571–574.
... stratigraphic research in the Utcubamba Valley, northern Peru, where the Aramachay Formation (Pucara Group) contains a complete upper Norian to lower Sinemurian marine sedimentary sequence ( Fig. 1 ; Schaltegger et al., 2008 ). The thickest sequence is located near Levanto ( Fig. 1B ) and consists of soft...
FIGURES
Journal Article
Journal: Geology
Published: 01 May 2010
Geology (2010) 38 (5): 387–390.
... from the Pucara basin, northern Peru ( Fig. 1A ; Schaltegger et al., 2008 ), and also the first discovered ash bed from the New York Canyon, Nevada, which has been proposed as the Global Boundary and Stratotype Section and Point for the Triassic-Jurassic boundary ( Guex et al., 2004 ). We also provide...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1967
AAPG Bulletin (1967) 51 (7): 1346–1353.
... Lakes Huallacocha Alta and Huallacocha Baja, two spectacular lakes of glacial origin. The northwesterly ranges and valleys in the area show many landforms caused by Pleistocene ice cover. Glacier remains are found on the south and southwest slopes of the higher peaks (Cerros Ruricocha and Jayco). Lake...
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Journal Article
Published: 01 August 2020
American Mineralogist (2020) 105 (8): 1223–1241.
... Brophy 2012 ). (Color online.) The Pucará Basin includes many types of ores in central and northern Peru ( Kobe 1977 , 1982 , 1990a , 1990b ; Dalheimer 1990 ; Fontboté 1990 ; Reid 2001 ), mainly corresponding to Mississippi Valley-type (MVT) Zn-Pb deposits. The most intensive exploration...
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Journal Article
Journal: Economic Geology
Published: 01 June 2018
Economic Geology (2018) 113 (4): 825–856.
..., with locally sandy intercalations, black bituminous limestone, and beds with chert nodules belonging to the Late Triassic Chambará Formation, part of the Pucará Group ( Angeles, 1999 ; Rosas et al., 2007 ). This carbonate sequence is affected by the N-striking and N-plunging Cerro anticline ( Fig. 1B...
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Journal Article
Published: 01 January 2004
Petroleum Geoscience (2004) 10 (1): 1–19.
... The Devonian Cabanillas (deltaic mudstone) and Permian Ene (lacustrine mudstone) formations, and Upper Triassic to Lower Jurassic Pucara Gp (carbonate shelf limestone). Upper Palaeozoic (proven confined to Camisea Sub-basin) sandstone/limestone plays: Carboniferous Tarma and Ene formations. Cretaceous...
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Journal Article
Published: 01 June 1994
Journal of the Geological Society (1994) 151 (3): 473–483.
... of Soufh American Earth Sciences 1991 4 61 71 Naeser C.W. Naeser C.W. McCulloh T. H. Thermal History of Rocks in the Southern San Joaquin Valley, California: Evidence from Fission-track Analysis Bullefin of the American Associafion of Petroleum Geologists 1990 74 13 29...
Series: AAPG Memoir
Published: 01 January 2018
DOI: 10.1306/13622120M1173769
EISBN: 9781629812809
...) thick. C. Large bivalve mollusks, Chambará Formation, Utcubamba River, location 5; sample smelled of gasoline-range hydrocarbons on a fresh break. Pen is 13.5-cm (5.3-in.) long. Figure 7. Merged photo of the Pucará Group exposure along the south side of the Utcubamba River valley, location 5...
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