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Caracol Formation

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Journal Article
Journal: Economic Geology
Published: 01 December 1988
Economic Geology (1988) 83 (8): 1802–1829.
... at the junction between the Sierra Madre Oriental, the Sierra Madre Occidental, and the Mesa Central. Host sediments are the Lower Cretaceous Aurora and Cuesta del Cura limestones and the Upper Cretaceous Indidura and/or Caracol Formations. Mineralization is spatially and temporally associated with a 33-m.y.-old...
Journal Article
Journal: Economic Geology
Published: 01 May 2000
Economic Geology (2000) 95 (3): 645–654.
... silver so as to be bulk minable. The silver-bearing clasts originated from the summit of Cerro Rico and are composed of dacite porphyry or air-fall tuffs or arkosic sands of the Caracoles Formation that have been altered to vuggy silica or jasperoid. Analysis of facies, bedforms, depositional textures...
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Image
Field photo of the <b>Caracol</b> West thrust fault in the <b>Caracol</b> Valley, looking...
in > Geosphere
Published: 01 December 2014
Figure 5. Field photo of the Caracol West thrust fault in the Caracol Valley, looking south. The thrust places the (greenish) Ordovician Yerba Loca Formation over the ca. 21 Ma Neogene redbeds. Bushes in foreground are ∼1 m high. See Figure 3 (upper left of center, outlined by white box
Journal Article
Journal: Palynology
Published: 01 November 2015
Palynology (2015) 39 (3): 362–386.
... shows the chronostratigraphic correlation of the Cañadón Asfalto Formation at Cañadón Caracoles, Cañadón Lahuincó ‘A’ and ‘B’sections, based on palynological data. The palaeoenvironmental trend (D: dry; H: humid) of Figure 8 is based on the PEGs ( Table 3 ). The lowest stratigraphical part...
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Journal Article
Journal: Economic Geology
Published: 01 June 1962
Economic Geology (1962) 57 (4): 536–547.
...W. C. Stoll Abstract Tin- and tungsten-bearing quartz-tourmaline veins of the Caracoles district occupy predominantly northeast-striking fractures in the southeastern end of the Quimsa Cruz granodioritic batholith, emplaced in folded Paleozoic formations. Formation of the vein fractures may have...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1961
AAPG Bulletin (1961) 45 (2): 169–197.
... extensively developed. These sequences contain intercalations of marine and continental sedimentites, exposed in isolated areas, and are intruded by Senonian granodiorites. The Jurassic and Cretaceous sedimentary sequences exposed at Moctezuma, Caracoles, Potrerillos-Pedernales, Purilactis, Sierra de Almeida...
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Journal Article
Published: 01 February 1988
Journal of the Geological Society (1988) 145 (1): 175–176.
...-dominated vein-type mineralization comprising silver sulphosalts, native silver, argentite, minor sulphides, calcite, and baryte at Caracoles, northern Chile, was described by Fontbote, Schmidt & Flint, who emphasized the localization of high-grade ore at the intrusive contact between a porphyritic...
Image
Stratigraphical sections of the Cañadón Asfalto <b>Formation</b> at Cañadón Lahuin...
in > Palynology
Published: 01 November 2015
Figure 2 Stratigraphical sections of the Cañadón Asfalto Formation at Cañadón Lahuincó and Cañadón Caracoles localities. See Table 1 for sample details.
Image
Location of the outcrops of the Cañadón Asfalto <b>Formation</b> and the three sec...
in > Palynology
Published: 01 November 2015
Figure 1 Location of the outcrops of the Cañadón Asfalto Formation and the three sections (A, B and C) studied, Cerro Cóndor Depocentre, area of the middle Chubut River valley. Patagonia, Argentina. A: Cañadón Lahuincó ‘A’; B: Cañadón Lahuincó ‘B’ and C: Cañadón Caracoles.
Journal Article
Published: 01 November 2003
Journal of Paleontology (2003) 77 (6): 1069–1085.
... with taxonomy, and until now the sedimentary environments of the Steinmanella bearing facies have not been interpreted. The present study analyzes morphology, taxonomy, stratigraphy, and paleobiology of Steinmanella species collected from five sections of the Lower Member of the Agrio Formation, including...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1960
AAPG Bulletin (1960) 44 (10): 1609–1620.
..., and Tithonian, and have discovered that the structure shown by Biese is somewhat different in that there are more main faults. Approximately 60 kilometers south of Cerritos Bayos, in the locality of Caracoles, Harrington (1945) described Oxfordian, Callovian, and Bajocian formations; however, in this locality...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 15 December 2020
AAPG Bulletin (2020) 104 (12): 2521–2555.
... during the Triassic–Early Jurassic in a rift environment that generated a localized petroleum system. Continued subsidence during the Early Jurassic resulted in the first marine ingression (Los Molles Formation, total organic carbon [ TOC ] 1%–7%). This unit matured 120 to 55 m.y.a., before the formation...
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Series: Geological Society, London, Engineering Geology Special Publications, Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2005
DOI: 10.5382/SP.11.08
EISBN: 9781629490359
... several fault-controlled basement blocks of late Paleozoic age and a number of sedimentary and volcano-sedimentary sequences of Mesozoic and Cenozoic age. Of these, the Late Cretaceous Quebrada Mala Formation and the middle Eocene domes of the Estratos de Cerro Casado are widely distributed in the area...
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Series: Memoir - AAPG, Memoir - AAPG
Published: 01 January 2001
DOI: 10.1306/M75768C9
EISBN: 9781629810638
... in the Aptian ( Dickinson and Lawton, 2001 ) or the succeeding continental-margin arc that commenced in the Albian. The presence of thick submarine tuffs of early Late Cretaceous age at the top of the Indidura Formation and in its equivalent, the Caracol Formation, provides a case for the latter...
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Series: Special Publications of the Society of Economic Geologists, Special Publications of the Society of Economic Geologists
Published: 01 January 2010
DOI: 10.5382/SP.15.1.13
EISBN: 9781629490397
... and evaporites (Caracoles Group) and Late Jurassic to Early Cretaceous (?) continental red-bed sequences (Llanura Colorada Formation), which are part of the fill to the Tarapacá back-arc basin of northern Chile ( Mpodozis and Ramos, 1990 ; Mpodozis et al., 1993 ; Marinovic and García, 1999 ). These units...
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Book Chapter

Author(s)
E. C. Wells
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.266.01.10
EISBN: 9781862395145
... traditional soil taxonomy. While these kinds of classification approaches are not widely applicable, they strongly suggest that human use and perception of cultural soilscapes have important consequences for understanding soil formation processes. Since culture and soil #x2018;coevolve#x2019; alongside one...
Journal Article
Journal: AAPG Bulletin
Published: 01 August 1944
AAPG Bulletin (1944) 28 (8): 1077–1195.
... feet of Parras shale. Eastward from Parras the shaly to thin-bedded limestone of Coniacian age passes into thicker tuffaceous beds, called the Caracol formation, which has been identified as far south as Mazapil and attains a thickness of about 3,350 feet near Melchor Ocampo in northern Zacatecas...
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Journal Article
Journal: Economic Geology
Published: 01 November 2012
Economic Geology (2012) 107 (7): 1387–1402.
... considers shear zone-hosted veins associated with mafic rocks and iron formations in the greenstone terrain. Detailed models were constructed for different blocks of the study area. A subset of these targets, i.e., Marcinho, Resende, and Votuporanga, were subsequently assessed using field evaluations...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2404(08)
..., microbiological, and geomorphologic data for Zacatón indicate that cave formation processes are similar to those observed in other volcanically influenced systems. Study of the origin of limestone caves is a significant field of geologic investigation. Theories regarding the formation...
Journal Article
Published: 01 May 2011
Journal of Paleontology (2011) 85 (3): 395–405.
... Formation, in the Quebrada San Pedro area, Precordillera of northern Chile. Taphonomic, systematic, and paleobiogeographic data confirm these dimorphs were part of indigenous populations within the Tarapaca Basin, belonging to the same demic biospecies: Dimorphinites defrancei (d'Orbigny). The West Tethyan...
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