1940 E.W Scripps Cruise to the Gulf of California. Parts I-V. PDF Download
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Author: C.A. Anderson
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Category :
Languages : en
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Author: C.A. Anderson
Publisher:
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Category :
Languages : en
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Author: Charles A. Anderson, J. Wyatt Durham, Francis P. Shepard, M.L. Natland, and Roger Revelle
Publisher: Geological Society of America
ISBN: 081371043X
Category : California, Gulf of (Mexico)
Languages : en
Pages : 482
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Author: Charles Alfred Anderson
Publisher:
ISBN:
Category : California, Gulf of (Mexico)
Languages : en
Pages : 496
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During the fall of 1940, the auxiliary research schooner E.W. SCRIPPS made a scientific cruise to the Gulf of California, supported jointly by The Geological Society of America and the Scripps Institution of Oceanography of the University of California. The voyage lasted 78 days, from October 5 to December 22. A total distance of 6400 nautical miles was travelled; 4600 miles were logged during the 65 days that the vessel was in the Gulf, and the remaining 1800 miles were covered enroute to and from the area. C. Francisco Diaz Salcido of the Mexican Departmento de Marina accompanied the expedition as representative of the Mexican Government. In addition to his official duties, Senor Diaz kindly acted as interpreter and as contact man with public officials, merchants, and others. His services were invaluable, particularly to the geologists ashore. It is appropriate here also to acknowledge the gratitude felt by all the members of the expedition for the unfailing co-operation and courtesy extended to them by the representatives of the Mexican Government in San Diego, Guaymas, and other ports visited. Considerable scientific exploration of the peninsula of Baja California has been carried out in the past, and many biological collecting expeditions have visited the islands and waters of the Gulf, but until 1939 there was virtually no information concerning either the geology of the Gulf Islands and sea floor or the physical and chemical oceanography of its waters. In 1939 the E.W. SCRIPPS made a reconnaissance expedition to the entire Gulf. The soundings, cores of bottom sediments, and the brief glimpses of land geology suggested that in the Gulf are many of the conditions that have characterized certain past basins of sedimentation of great geologic interest. The purpose of the 1940 expedition was to study the geologic processes which are or have been active in the Gulf, through co-ordinated investigations of the recent geologic history of the land, of the bottom topography and sediments, and of the nature of the marine environment. In its unity of purpose, which was constantly kept in mind both in planning the work and in discussing results, it is believed that the expedition differed from most of its predecessors. On the 1939 expedition, soundings, cores, and hydrographic data were obtained on a series of cross sections at more or less regular intervals between the entrance to the Gulf and a point about 30 miles below the mouth of the Colorado. Accordingly it was believed that maximum results could be obtained by concentrating the work in 1940 on certain relatively small areas of diverse character. Four such areas were selected:(1) The region around Guaymas, with a relatively broad shallow shelf in the southern portion at the mouths of the Yaqui and Mayo rivers, and a mountainous coast north of the city, was chosen as representative of the range of conditions to be found on the eastern side of the Gulf.(2) The Carmen Island area in the western gulf, a region of complex submarine topography, and of many islands on which extensive exposures of fossiliferous marine Tertiary rocks occur.(3) The Concepcion Bay area also in the western gulf, of less complex bottom topography but with a variety of sedimentational environments and extensive Pliocene and Pleistocene deposits.(4) The Tibúron area, a region of special interest not only because it forms a constricted transition zone between the deep southern portion of the Gulf and the relatively shallow, gently sloping northern third, but because it contains the long, straight, and deep fault trough of the Sal si Puedes Basin, between Angel de la Guarda Island and the peninsula. In addition to these four areas, surveys of bottom topography in two submarine canyons were made while enroute to Guaymas, and the course of the vessel was so laid at other times that soundings could be taken in regions of topographic interest. Reports on the geology of certain islands and of a portion of the coast are included in the present volume, in papers by Anderson, Durham, and Natland. A discussion of the submarine topography is given by Shepard, together with a series of charts and a glossary of place names. Revelle presents a brief survey of the field observations of marine sedimentation and of physical, chemical, and biological oceanography.
Author: E. W. Scripps
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Charles Alfred Anderson
Publisher:
ISBN:
Category : California, Gulf of (Mexico)
Languages : en
Pages : 512
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During the fall of 1940, the auxiliary research schooner E.W. SCRIPPS made a scientific cruise to the Gulf of California, supported jointly by The Geological Society of America and the Scripps Institution of Oceanography of the University of California. The voyage lasted 78 days, from October 5 to December 22. A total distance of 6400 nautical miles was travelled; 4600 miles were logged during the 65 days that the vessel was in the Gulf, and the remaining 1800 miles were covered enroute to and from the area. C. Francisco Diaz Salcido of the Mexican Departmento de Marina accompanied the expedition as representative of the Mexican Government. In addition to his official duties, Senor Diaz kindly acted as interpreter and as contact man with public officials, merchants, and others. His services were invaluable, particularly to the geologists ashore. It is appropriate here also to acknowledge the gratitude felt by all the members of the expedition for the unfailing co-operation and courtesy extended to them by the representatives of the Mexican Government in San Diego, Guaymas, and other ports visited. Considerable scientific exploration of the peninsula of Baja California has been carried out in the past, and many biological collecting expeditions have visited the islands and waters of the Gulf, but until 1939 there was virtually no information concerning either the geology of the Gulf Islands and sea floor or the physical and chemical oceanography of its waters. In 1939 the E.W. SCRIPPS made a reconnaissance expedition to the entire Gulf. The soundings, cores of bottom sediments, and the brief glimpses of land geology suggested that in the Gulf are many of the conditions that have characterized certain past basins of sedimentation of great geologic interest. The purpose of the 1940 expedition was to study the geologic processes which are or have been active in the Gulf, through co-ordinated investigations of the recent geologic history of the land, of the bottom topography and sediments, and of the nature of the marine environment. In its unity of purpose, which was constantly kept in mind both in planning the work and in discussing results, it is believed that the expedition differed from most of its predecessors. On the 1939 expedition, soundings, cores, and hydrographic data were obtained on a series of cross sections at more or less regular intervals between the entrance to the Gulf and a point about 30 miles below the mouth of the Colorado. Accordingly it was believed that maximum results could be obtained by concentrating the work in 1940 on certain relatively small areas of diverse character. Four such areas were selected:(1) The region around Guaymas, with a relatively broad shallow shelf in the southern portion at the mouths of the Yaqui and Mayo rivers, and a mountainous coast north of the city, was chosen as representative of the range of conditions to be found on the eastern side of the Gulf.(2) The Carmen Island area in the western gulf, a region of complex submarine topography, and of many islands on which extensive exposures of fossiliferous marine Tertiary rocks occur.(3) The Concepcion Bay area also in the western gulf, of less complex bottom topography but with a variety of sedimentational environments and extensive Pliocene and Pleistocene deposits.(4) The Tibúron area, a region of special interest not only because it forms a constricted transition zone between the deep southern portion of the Gulf and the relatively shallow, gently sloping northern third, but because it contains the long, straight, and deep fault trough of the Sal si Puedes Basin, between Angel de la Guarda Island and the peninsula. In addition to these four areas, surveys of bottom topography in two submarine canyons were made while enroute to Guaymas, and the course of the vessel was so laid at other times that soundings could be taken in regions of topographic interest. Reports on the geology of certain islands and of a portion of the coast are included in the present volume, in papers by Anderson, Durham, and Natland. A discussion of the submarine topography is given by Shepard, together with a series of charts and a glossary of place names. Revelle presents a brief survey of the field observations of marine sedimentation and of physical, chemical, and biological oceanography.
Author: Markes E. Johnson
Publisher: University of Arizona Press
ISBN: 0816598843
Category : Travel
Languages : en
Pages : 272
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Baja California is one of the Earth’s last great wilderness areas that is easily accessible to travelers. Whether you enter from the United States to the north or from Cabo San Lucas to the south, it doesn’t take long to find yourself passing through a unique desert ecosystem of islands and land bound by the Pacific Ocean on the west and the Gulf of California on the east. But where, you might ask, can you go to best experience the physical majesty of Baja California? This book holds the answer. Off-Trail Adventures in Baja California describes—and maps and illustrates—nine hikes along outcrops on islands and peninsular shores where geography, geology, and ecology meet in singular ways. Each spot tells a story about the nature of the place—the cumulative effects of millions of years of natural forces at work. During the course of his long teaching career, Markes E. Johnson has hiked much of Baja California, often with students in tow. He brings a lifetime of study to his simple descriptions of the stories that are revealed by looking closely at natural phenomena framed by rocks and fossils. This hiking guide offers a wealth of stories that seem to encompass everything, and can clearly communicate Johnson’s deep understanding of how our planet’s ecosystems function. Whether you like to hike with your boots on or from the comfort of your favorite chair, this book is a must-have for anyone who has visited or hopes to visit Baja California’s Gulf Coast.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 212
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Author: James Trumbull
Publisher:
ISBN:
Category : Continental shelf
Languages : en
Pages : 344
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Author: Robert Wauchope
Publisher: University of Texas Press
ISBN: 1477306919
Category : Social Science
Languages : en
Pages : 333
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The publication of Volume 16 of this distinguished series brings to a close one of the largest research and documentation projects ever undertaken on the Middle American Indians. Since the publication of Volume 1 in 1964, the Handbook of Middle American Indians has provided the most complete information on every aspect of indigenous culture, including natural environment, archaeology, linguistics, social anthropology, physical anthropology, ethnology, and ethnohistory. Culminating this massive project is Volume 16, divided into two parts. Part I, Sources Cited, by Margaret A. L. Harrison, is a listing in alphabetical order of all the bibliographical entries cited in Volumes 1-11. (Volumes 12-15, comprising the Guide to Ethnohistorical Sources, have not been included, because they stand apart in subject matter and contain or constitute independent bibliographical material.) Part II, Location of Artifacts Illustrated, by Marjorie S. Zengel, details the location (at the time of original publication) of the owner of each pre-Columbian American artifact illustrated in Volumes 1-11 of the Handbook, as well as the size and the catalog, accession, and/or inventory number that the owner assigns to the object. The two parts of Volume 16 provide a convenient and useful reference to material found in the earlier volumes. The Handbook of Middle American Indians was assembled and edited at the Middle American Research Institute of Tulane University with the assistance of grants from the National Science Foundation and under the sponsorship of the National Research Council Committee on Latin American Anthropology.
Author:
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ISBN:
Category : Geology
Languages : en
Pages : 676
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