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Dos Pacos Shale Member

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Journal Article
Journal: AAPG Bulletin
Published: 01 March 1946
AAPG Bulletin (1946) 30 (3): 337–347.
..., on the east side of the Guayas River near Guayaquil, north of the railroad station, Duran or Eloy Alfaro (Guayaquil-Quito Railroad). The type locality of the so-called Calentura member of the Callo formation is 7.3 kilometers north and 5.8 kilometers east from Guayaquil. The shales are so indurated that even...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1963
AAPG Bulletin (1963) 47 (1): 1–34.
...John J. Wilson ABSTRACT Cretaceous facies in Peru commonly fall into a lower, mainly clastic, group of formations and an upper group consisting of limestones, dolomites and shales. The clastic formations are largely non-marine. Over much of the country they range in age from Valanginian to Late...
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Journal Article
Journal: Economic Geology
Published: 01 May 2008
Economic Geology (2008) 103 (3): 493–537.
... of low-sulfidation states; they suggest that the oxidizing, slightly acidic hydrothermal fluid was buffered by phyllite, shale, and carbonate host rock. However, the presence in the pyrite-quartz body of hematite within quartz suggests that, locally, the fluids were less buffered by the host rock...
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Journal Article
Journal: SEG Discovery
Published: 01 January 1999
SEG Discovery (1999) (36): 1–48.
... Lindsley Visiting Lecturers Video Series exclusively for members of the Society. 27 SEG-SME 2000 Annual Meeting-Call for Papers Opinions expressed herein are those of the 31 New SEG Guidebooks writers and do not necessarily represent official 31 Call for Nominations for Penrose and SEG Medals and Marsden...
Journal Article
Journal: SEG Discovery
Published: 01 July 2003
SEG Discovery (2003) (54): 1–48.
...-based resources most Ni laterites do have an upper fer- ther classi ed as hydrous silicate containing over 1% nickel, approxi- deposits (e.g., SLN Operations, New mately 60% is in laterite deposits (USGS ruginous duricrust, they rarely contain Caledonia), clay silicate deposits (e.g., Mineral Commodity...
Journal Article
Journal: SEG Discovery
Published: 01 July 2019
SEG Discovery (2019) (118): 1–64.
..., and much more. This is a great resource for geological training and researchers alike. I believe the more our Society and its members can do to encourage and help students and early career professionals to look at more rocks, the better. After all, practically all aspects of economic geology are based...
Journal Article
Journal: SEG Discovery
Published: 01 July 2020
SEG Discovery (2020) (122): 1–76.
...-mail: seg@segweb.org www.segweb.org SEG Discovery is published quarterly in January, April, July, and October by the Society of Economic Geologists, Littleton, Colorado, exclusively for members of the Society. Opinions expressed herein are those of the writers and do not neces- sarily represent...
Journal Article
Published: 01 April 2020
Seismological Research Letters (2020) 91 (2B): 1095–1338.
..., the staff and students ran a delicate balance between locating events, maintaining operations, communicating with press and public and trying to find time to do the necessary science to provide critical information to emergency responders and government officials. Here the experience of the M6.4 sequence...
... the National Park Service, Lake Mead National Recreation Area, and Bureau of Reclamation for logistics and permissions, and the U.S. Geological Survey National Cooperative Geologic Mapping Program for support. James Messerich, Lisa Rukstales, and Paco VanSistine, respectively, provided photogrammetric...
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