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El Molino Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 June 1997
GSA Bulletin (1997) 109 (6): 709–727.
... of Bolivia and adjacent areas. The partly restricted marine El Molino Formation spans the Maastrichtian and Danian (°73–60.0 Ma). Deposition of the alluvial to lacustrine Santa Lucia Formation occurred between 60.0 and 58.2 Ma. The widespread erosional unconformity at the base of the Cayara Formation is 58.2...
Series: AAPG Memoir
Published: 01 January 1995
DOI: 10.1306/M62593C14
EISBN: 9781629810836
...-Campanian) with a total accumulation of up to 1000 m of sandstones and shales. A period of tectonic quiescence followed that resulted in a regional sag basin characterized by thin-bedded, calcareous lacustrine deposits. This sequence includes the oil-prone shales and reservoir carbonates of the El Molino...
Journal Article
Journal: GSA Bulletin
Published: 29 January 2020
GSA Bulletin (2020) 132 (9-10): 1931–1952.
... whether orbital forcings influenced sedimentary records of the past, and if so, which had such an effect, can shed light on Earth’s climate sensitivity and global ice volume. To this end, we present a field- and drone-based cyclostratigraphy of the predominantly lacustrine El Molino Formation of the Late...
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 Figure 4. Measured stratigraphic sections of Paleogene deposits in the northern  and central Altiplano (locations shown in Fig. 2), including facies types, formation names, stratigraphic correlations, paleocurrent data, published K-Ar dates, and locations of palynological samples. Rose diagrams depict east-directed paleocurrents in the Potoco Formation and west-directed paleocurrents  in the Santa Lucia Formation. Lithostratigraphic correlations for lower intervals are made on the basis of distinctive, carbonate-bearing strata of the El Molino Formation and gypsum beds of the Chuquichambi member of the Potoco Formation. Correlations for the upper interval are based on the stratigraphically  lowest occurrence of volcanic tuffs
Published: 01 November 2001
depict east-directed paleocurrents in the Potoco Formation and west-directed paleocurrents in the Santa Lucia Formation. Lithostratigraphic correlations for lower intervals are made on the basis of distinctive, carbonate-bearing strata of the El Molino Formation and gypsum beds of the Chuquichambi
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Generalized stratigraphic sections of Paleocene-lower Miocene deposits from the northern, central, and southern study regions (locations are shown in Fig. 1). Depicted features include thickness (km), basic lithology, paleocurrent data, and locations of sandstone point-count samples. Stratigraphic correlations are based on (1) distinctive lithostratigraphic elements such as the top of the El Molino Formation (0 m level, Sections 1-4, 9), the top of the Santa Lucia Formation (Sections 1-4, 9), the basal gypsum member of the Potoco Formation (Sections 5, 7, 8A), and basal conglomerate of the Coniri Formation (Sections 7, 8A, 8B), (2) palynological ages from the Potoco Formation, and (3) published 25-23 Ma K-Ar ages for the stratigraphically lowest tuffs in overlying volcaniclastic deposits. See Horton et al. (2001) for facies analyses and stratigraphic nomenclature.
Published: 01 September 2002
. Stratigraphic correlations are based on (1) distinctive lithostratigraphic elements such as the top of the El Molino Formation (0 m level, Sections 1-4, 9), the top of the Santa Lucia Formation (Sections 1-4, 9), the basal gypsum member of the Potoco Formation (Sections 5, 7, 8A), and basal conglomerate
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1970
AAPG Bulletin (1970) 54 (5): 735–757.
... of data in the Altiplano region. For example, at Copacabana, 3 km northwest of Andamarca near Lake Poopó, the Upper Cretaceous El Molino Formation directly overlies the Lower Devonian (fauna determined by L. Braniša in 1963). However, in northern Chile, Galli (1956) described limestone interbedded...
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Journal Article
Published: 01 March 1977
Journal of Sedimentary Research (1977) 47 (1): 199–208.
... Cretaceous to Holocene. Core samples reveal that only the Late Neogene sedimentary section is exposed along the El Capitan Gaviota portion of the shelf. This includes the Miocene Monterey Formation, the Late Miocene/Early Pliocene Sisquoc Formation, the Pliocene "Repetto" Formation, the Plio-Pleistocene...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2001
GSA Bulletin (2001) 113 (11): 1387–1400.
... depict east-directed paleocurrents in the Potoco Formation and west-directed paleocurrents in the Santa Lucia Formation. Lithostratigraphic correlations for lower intervals are made on the basis of distinctive, carbonate-bearing strata of the El Molino Formation and gypsum beds of the Chuquichambi...
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Journal Article
Published: 01 September 2002
Journal of Sedimentary Research (2002) 72 (5): 711–726.
.... Stratigraphic correlations are based on (1) distinctive lithostratigraphic elements such as the top of the El Molino Formation (0 m level, Sections 1-4, 9), the top of the Santa Lucia Formation (Sections 1-4, 9), the basal gypsum member of the Potoco Formation (Sections 5, 7, 8A), and basal conglomerate...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 February 2017
Lithosphere (2017) 9 (1): 29–45.
...., Wörner et al., 2000 ). In the Central Depression, ignimbrites of the Oxaya Formation are overlain by sediments of the mid-Miocene El Diablo Formation. Two members are recognized within the El Diablo Formation ( García et al., 2004 , and references herein). The Lower Member consists of conglomerates...
Journal Article
Journal: GSA Bulletin
Published: 01 January 2003
GSA Bulletin (2003) 115 (1): 58–77.
... Formations ( Geobol, 1962a , 1962b , 1994 , 1995 , 1996 ; Troëng et al., 1993 ; Suárez and Diaz, 1996 ; Sempere et al., 1989 , 1997 ). These units concordantly overlie the Maastrichtian–Paleocene El Molino and Santa Lucía Formations. For example, in a partial erosional window beneath the Los...
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Journal Article
Journal: Palynology
Published: 14 October 2024
Palynology (2024) 48 (4): 2358016.
...Aboubakr Boutahar; Paloma Cariñanos Gonzalez; Rosa Maria Picone; Alessandro Crisafulli; Joaquín Molero Mesa; Fatima Zahrae Redouan; Ismail El Bakali; Mohamed Kadiri; Zouhaire Lamrani; Abderrahmane Merzouki Abstract This study discovers the distribution of vegetation in the Sougna Mountain and its...
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Journal Article
Journal: Palynology
Published: 01 January 2001
Palynology (2001) 25 (1): 217–249.
...OSCAR YEPES Abstract Two outcrop sections from the Maastrichtian Colón and Mito Juan Formations were analyzed for dinoflagellate cyst biostratigraphy. Samples from the Río Molino section (Cesar-Ranchería Basin, Colombia) represent a subset of samples from the 240 m-thick hemipelagic limestones...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2000
GSA Bulletin (2000) 112 (11): 1752–1755.
... that it is a west-vergent fault ( Hérail et al., 1996 ) associated with tectonic slices of the El Molino Formation ( Tawackoli, 1997 ), a Maastrichtian–Danian stratigraphic unit otherwise unknown from the entire Tupiza area. This observation supports the fault interpretation by Hérail et al. and Kley et al...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2010
GSA Bulletin (2010) 122 (9-10): 1443–1462.
... ; DeCelles and Horton, 2003 ). Previous studies have related the observed stratigraphy to an eastward migration of the Andean foreland basin system, with the El Molino and Santa Lucia formations deposited in a backbulge depozone, the main body of the Potoco Formation recording foredeep deposition...
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Figure 4. Magnetic polarity stratigraphy of the La Higuerita (III), El Molino (IV), and Quebrada de la Angostura (V) sections. (A) Simplified stratigraphic section, (B) virtual geomagnetic pole (VGP) latitudes, and (C) magnetic polarity zonation as described in Figure 3. Cross-hatched portions in (C) have no magnetic polarity data. The base of the Tobas Angostura Formation in section IV is covered. It has been estimated that there is ∼15 m of no stratigraphic coverage, below which there are strata from the La Pilona Formation.
Published: 01 June 2000
Figure 4. Magnetic polarity stratigraphy of the La Higuerita (III), El Molino (IV), and Quebrada de la Angostura (V) sections. (A) Simplified stratigraphic section, (B) virtual geomagnetic pole (VGP) latitudes, and (C) magnetic polarity zonation as described in Figure 3 . Cross-hatched portions
Journal Article
Journal: GSA Bulletin
Published: 01 June 2000
GSA Bulletin (2000) 112 (6): 803–816.
...Figure 4. Magnetic polarity stratigraphy of the La Higuerita (III), El Molino (IV), and Quebrada de la Angostura (V) sections. (A) Simplified stratigraphic section, (B) virtual geomagnetic pole (VGP) latitudes, and (C) magnetic polarity zonation as described in Figure 3 . Cross-hatched portions...
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Journal Article
Published: 19 April 2016
Journal of the Geological Society (2016) 173 (5): 716–733.
... holes through the >1000 m thick Oxaya Formation in northernmost Chile ( Fig. 1 ). Here the Oxaya Formation contains a succession of four rhyolitic ignimbrites, which are from oldest to youngest the Poconchile, Cardones, Molinos and Oxaya ignimbrites ( García et al. 2004 ). We present detailed drill...
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Journal Article
Published: 28 November 2019
Journal of the Geological Society (2020) 177 (2): 233–257.
...  = 5) HT–LP metamorphism and anatexis (concordia age) 493–457 Back-arc Sierra de Molinos (2) Metatexite migmatite Molinos Metamorphic Unit (La Paya Formation) Zircon U–Pb LA-MC-ICP-MS 466 ± 3 ( n  = 7) HT–LP metamorphism and anatexis (concordia age) 469–462 Back-arc Sierra de Molinos (3...
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Journal Article
Journal: Geosphere
Published: 16 September 2022
Geosphere (2022) 18 (6): 1643–1678.
... Mountains: PP—Pusch Peak; ML—Mt. Lemmon; MB—Molino Basin; MM—Mica Mountain; RP—Rincon Peak. Mts—Mountains, Mtn—Mountain. CORRESPONDENCE: [email protected] 14 09 2021 17 05 2022 18 07 2022 © 2022 The Authors 2022 Gold Open Access: This paper is published under...
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