1-20 OF 31 RESULTS FOR

Aspero Formation

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
Published: 08 April 2020
Journal of Sedimentary Research (2020) 90 (4): 364–388.
...María Duperron; Roberto Adrián Scasso ABSTRACT The study on a unique set of outstandingly preserved sedimentary surface textures (SSTs) found in the late Tremadocian Áspero Formation of northwestern Argentina, coupled with the sedimentological and ichnological analysis, indicate that they were...
FIGURES | View All (10)
Image
Lithofacies of the <span class="search-highlight">Áspero</span> <span class="search-highlight">Formation</span>, pictured in  Figures 2  and S3.
Published: 08 April 2020
Table 1.— Lithofacies of the Áspero Formation, pictured in Figures 2 and S3.
Image
Sedimentary surface textures (SSTs) of the <span class="search-highlight">Áspero</span> <span class="search-highlight">Formation</span>. Classification...
Published: 08 April 2020
Table 2.— Sedimentary surface textures (SSTs) of the Áspero Formation. Classification, associated structures, and processes and environmental conditions.
Image
Figure  2 —Stratigraphic sections examined for this study, showing position...
Published: 01 May 2005
Figure 2 —Stratigraphic sections examined for this study, showing position of collected samples. 1, Quebrada Chalala section; 2, Cerro San Bernardo section (only the upper part of the Aspero Formation and the lower part of the San Bernardo Formation are represented); 3, La Ciénaga section
Image
A)  Geologic map of the Las Maderas reservoir area. The studied interval is...
Published: 08 April 2020
Fig. 1.— A) Geologic map of the Las Maderas reservoir area. The studied interval is in the Áspero Formation; the main locality is located on the western flank of the Las Maderas Range. B) Integrated sedimentologic column for the Las Maderas Range. Lithofacies codes and facies associations (FA
Journal Article
Published: 01 September 2020
Journal of Paleontology (2020) 94 (5): 852–866.
..., occurring chaotically within the Middle and Upper Ordovician shales of the Estancia San Isidro and Empozada formations (Bordonaro et al., 1993 ; Keller, 1999 ; Heredia and Beresi, 2004 ). One of the most outstanding fossil-collecting areas is San Isidro, which comprises a number of hills and creeks ~15...
FIGURES | View All (6)
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1996
AAPG Bulletin (1996) 80 (3): 359–381.
... determined as Triassic ( Furque, 1979 ), then Permian ( Limarino et al., 1987 ), and more recently Cretaceous (Perez et al., in press) and the middle Cenozoic ( Jordan et al., 1993 ). Tertiary red beds and conglomerates of the El Corral Formation ( Furque, 1979 ) overlie the Del Aspero Group. Both the Del...
FIGURES | View All (20)
Journal Article
Journal: GSA Bulletin
Published: 01 May 2017
GSA Bulletin (2017) 129 (5-6): 750–766.
... al., 2007 ; Bossi and Muruaga, 2009 ). The conglomeratic sandstones of the Santa María Group contain abundant volcanic lithic fragments within the Las Arcas, Chiquimil, and the lower part of the Andalhuala Formations ( Bossi et al., 1998 ; Muruaga, 2001 ). In particular, the ca. 9 Ma El Áspero...
FIGURES | View All (8)
Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 247–269.
..., and the formation of F-rich micas could be the mechanism for precipitating these LILE and HFSE elements. The syntectonic emplacement of this pegmatite in a large shear zone could be a decisive factor in the migration of these late evolved fluids rich in F, LILE, and HFSE. § Corresponding author e...
FIGURES | View All (8)
Journal Article
Published: 07 July 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (2): 313–350.
...) and Casa la Plata creek (CLP). Lira et al. (1995) summarized partial information on the former occurrence. Completing additional research is focused on constraining skarn formation and metallogenetic conditions of fluid-rock interaction between Cambrian marbles and Devonian to Lower Carboniferous F...
FIGURES | View All (16)
Journal Article
Published: 19 August 2022
The Canadian Mineralogist (2022) 60 (4): 677–686.
... minerals. Other minor accompanying fluid–mineral reactions that likely favored titanite formation are sericitization and epidotization of plagioclase, the partial replacement of pargasite by actinolite, and the weak chloritization of phlogopite. These replacements occurred after the peak of medium-grade...
FIGURES
Journal Article
Published: 01 May 2022
Journal of Paleontology (2022) 96 (3): 611–630.
..., it occurs in the carbonate platform La Laja Formation (Poulsen, 1958 ; Borrello, 1971 and references therein; Bordonaro and Pratt, 2008 ; Foglia and Vaccari, 2010 ; Pratt and Bordonaro, 2014 ; Bordonaro, 2016 ), where G. walcotti Poulsen, 1927 , is the most diagnostic species (Foglia and Vaccari...
FIGURES | View All (9)
Journal Article
Published: 01 May 2005
Journal of Paleontology (2005) 79 (3): 532–541.
...Figure 2 —Stratigraphic sections examined for this study, showing position of collected samples. 1, Quebrada Chalala section; 2, Cerro San Bernardo section (only the upper part of the Aspero Formation and the lower part of the San Bernardo Formation are represented); 3, La Ciénaga section...
FIGURES | View All (5)
Journal Article
Journal: PALAIOS
Published: 27 October 2021
PALAIOS (2021) 36 (10): 313–325.
... in an Ordovician mixed-energy estuary, Áspero Formation of Santa Victoria Group, northwestern Argentina : Journal of Sedimentary Research , v. 90 , p. 364 – 388 . Eriksson, P.G., Sarkar, S...
FIGURES | View All (9)
Journal Article
Published: 01 May 2018
Journal of Paleontology (2018) 92 (S76): 1–44.
... Formation, Mackenzie Mountains, Northwest Territories (Pratt, 1992 ). Possibly Quebradita Oblícula, Cerro Aspero (Rusconi, 1954 ; see Pratt, 1992 ). Emigrant Formation ( Cedaria selwyni Zone), Split Mountain, Nevada. Split Mountain East Section, USNM loc. 44128–three cranidia, five pygidia. Split...
FIGURES | View All (27)
Journal Article
Published: 01 May 2023
Journal of Paleontology (2023) 97 (3): 591–605.
... and Upper Ordovician shales of the Estancia San Isidro and Empozada formations. Full information on the geology of the San Isidro area was provided by Bordonaro et al. ( 1993 ), Heredia ( 1995 ), Bordonaro and Banchig ( 1996 ), Keller ( 1999 ), Bordonaro ( 2003 ), Heredia and Beresi ( 2004 ), and Ortega et...
FIGURES | View All (5)
Journal Article
Journal: Economic Geology
Published: 01 September 2002
Economic Geology (2002) 97 (6): 1351–1359.
... Kikegawa 922 Quantitative characterization of biotic iron oxides by analytical electron microscopy— D. Mavrocordatos and Danielle Fortin 940 Surface reconstruction and aspolymerization at fractured loellingite (FeAs 2 ) surfaces— H.W. Nesbitt, I. Uhlig, and R. Szargan 1000 Diamond formation...
Journal Article
Published: 01 August 2023
Canadian Journal of Earth Sciences (2023) 60 (8): 1244–1264.
...Stephen R. Westrop; Jennifer D. Eoff Three shelf-derived boulders in debris flow conglomerates of the Downes Point Member of the Shallow Bay Formation of western Newfoundland yielded the first record of an Upper Cambrian shelf-margin trilobite fauna from the Elvinia Zone (Steptoean; Jiangshanian...
FIGURES | View All (12)
Journal Article
Published: 11 April 2022
Geological Magazine (2022) 159 (6): 925–953.
... Society of London, Special Publication no. 228. Duperron M and Scasso RA ( 2020 ) Paleoenvironmental significance of microbial mat-related structures and ichnofaunas in an Ordovician mixed-energy estuary, Áspero Formation of Santa Victoria Group, northwestern Argentina . Journal...
FIGURES | View All (16)
Journal Article
Published: 01 February 2007
The Canadian Mineralogist (2007) 45 (1): 87–106.
... and stoped blocks are superbly exposed, and offer excellent three-dimensional control. Field studies from this area confirm that the formation of Mode-I (opening mode) fractures played a major role in the mechanical erosion of this pluton’s margins. Fractures and dikes are pervasive at the contacts...
FIGURES | View All (12)