Download or read book STRATIGRAPHY AND CORRELATION FOR THE ANCIENT GULF OF CALIFORNIA AND BAJA CALIFORNIA PENINSULA MEXICO written by ANA LUISA. CARRENO and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphy and Correlation for the Ancient Gulf of California and Baja California Peninsula Mexico written by Ana Luisa Carreño and published by . This book was released on 2007 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphy and Correlation for the Ancient Gulf of California and Baja California Peninsula Mexico Classic Reprint written by Ana Luisa Carreño and published by Forgotten Books. This book was released on 2018-01-08 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Stratigraphy and Correlation for the Ancient Gulf of California and Baja California Peninsula, Mexico Other early references to Baja California geology are contained in the papers Of Lindgren (1888, 1889, Emmons and Merrill Willis and stose Darton and Bose and Wittich Nelson (1921) provided a good overview Of the ear liest surveys, natural history, roads, trails and ranchos in his report on the biological survey of 1905 - 1906. Access for these early Baja California expeditions was by boat and by pack animals; the Transpeninsular Highway (mexico 1) from Tijuana to La Paz was not completely paved until December 1973. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Stratigraphy and Correlation for the Ancient Gulf of California and Baja California Peninsula Mexico written by Ana Luisa Carreño and published by . This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Off Trail Adventures in Baja California written by Markes E. Johnson and published by University of Arizona Press. This book was released on 2014-03-13 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Gulf of California written by Richard C. Brusca and published by University of Arizona Press. This book was released on 2010-04-15 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few places in the world can claim such a diversity of species as the Gulf of California (Sea of Cortez), with its 6,000 recorded animal species estimated to be half the number actually living in its waters. So rich are the Gulf's water that over a half-million tons of seafood are taken from them annuallyÑand this figure does not count the wasted by-catch, which would triple or quadruple that tonnage. This timely book provides a benchmark for understanding the Gulf's extraordinary diversity, how it is threatened, and in what ways it isÑor should beÑprotected. In spite of its dazzling richness, most of the Gulf's coastline now harbors but a pale shadow of the diversity that existed just a half-century ago. Recommendations based on sound, careful science must guide Mexico in moving forward to protect the Gulf of California. This edited volume contains contributions by twenty-four Gulf of California experts, from both sides of the U.S.-Mexico border. From the origins of the Gulf to its physical and chemical characteristics, from urgently needed conservation alternatives for fisheries and the entire Gulf ecosystem to information about its invertebrates, fishes, cetaceans, and sea turtles, this thought-provoking book provides new insights and clear paths to achieve sustainable use solidly based on robust science. The interdisciplinary, international cooperation involved in creating this much-needed collection provides a model for achieving success in answering critically important questions about a precious but rapidly disappearing ecological treasure.

Download or read book Coral Reefs of the Eastern Tropical Pacific written by Peter W. Glynn and published by Springer. This book was released on 2016-08-12 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book documents and examines the state of health of coral reefs in the eastern tropical Pacific region. It touches on the occurrence of coral reefs in the waters of surrounding countries, and it explores their biogeography, biodiversity and condition relative to the El Niño southern oscillation and human impacts. Additionally contained within is a field that presents information on many of the species presented in the preceding chapters.

Download or read book Atlas of Coastal Ecosystems in the Western Gulf of California written by Markes E. Johnson and published by University of Arizona Press. This book was released on 2009 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gulf of California is one of the most beautiful places in the world, but it is also important to earth and marine scientists who work far beyond the area. In text and an accompanying CD-ROM with stunning satellite images, this atlas captures the dynamics of natural cycles in the fertility of the Gulf of California that have been in near-continuous operation for more than five million years. The book is designed to answer key questions that link the health of coastal ecosystems with the regionÕs evolutionary history: What was the richness of ÒfossilÓ ecosystems in the Gulf of California? How has it changed over time? Which ecosystems are most amenable to conservation? With an emphasis on the intricate workings of the Gulf, a team of scientists led by Markes E. Johnson and Jorge Ledesma-V‡zquez explores how marine invertebrates such as corals and bivalves, as well as certain algae, contribute to the operation of a vast Òorganic engineÓ that acts as a significant carbon trap. The Atlas reveals that the role of these organisms in the ecology of the Gulf was greatly underestimated in the past. The organisms that live in these environments (or provide the sediments for beaches and dunes) are mass producers of calcium carbonate. Until now, no book has considered the centrality of calcium carbonate production as it functions today across multiple ecosystems and how it has evolved over time. An important work of scholarship that also evokes the regionÕs natural splendor, the Atlas will be of interest to a wide range of scientists, including geologists, paleontologists, marine biologists, ecologists, and conservation biologists.

Download or read book Pliocene Carbonates and Related Facies Flanking the Gulf of California Baja California Mexico written by Markes E. Johnson and published by Geological Society of America. This book was released on 1997-01-01 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geologic Studies in Baja California written by Patrick L. Abbott and published by . This book was released on 1989 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neogene Tonnoidean Gastropods of Tropical and South America written by A. G. Beu and published by . This book was released on 2010 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reconnaissance Geology of the State of Baja California written by R. Gordon Gastil and published by Geological Society of America. This book was released on 1975-01-01 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Prebatholithic Stratigraphy of Peninsular California written by R. Gordon Gastil and published by Geological Society of America. This book was released on 1993-01-01 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Volcanic and Nonmarine Stratigraphy of Southwest Isla Tiburon Gulf of California Mexico written by Jay Robert Neuhaus and published by . This book was released on 1989 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Southwestern Isla Tiburon (SWIT), Gulf of California, Mexico, is an area approximately 30 square kilometers, containing sedimentary and volcanic strata which are predominantly Early and Middle Miocene in age. A fossiliferous marine conglomerate on SWIT is believed the oldest marine deposit in the Gulf of California region, and supports the conclusion that a marine protogulf existed 15 to 8 Ma. K-Ar ages from this and previous studies provide a time constraint on the deposition of the marine conglomerate and the overall volcanic history of SWIT. Dips of beds suggest listric faulting occurred throughout much of the Miocene: Redbeds dip 40-50°N, basalt flows 23oN, conglomerates 20oN, and an ignimbrite 5oNW. A fault along Arroyo II displays right-lateral, strike slip and may be related to the La Cruz Fault which trends NW-SE along the southwest end of the island. In the late Cretaceous-early Tertiary, SWIT was part of the arc system along the western margin of the North American Plate. At this time, SWIT was adjacent to northeastern Baja California. In the Early Miocene Basin and Range extension led to the formation of small trough-shaped basins, and fluvio-lacustrine deposition resulted. Volcanic and roof pendant debris was shed into small basins on SWIT from the north. At 21-19 Ma andesitic volcanism occurred and a volcanic collapse structure formed which was later filled with andesitic lahar. The andesitic magma apparently formed out of a primary melt of the lower crust. From 19-16 Ma basaltic volcanism was dominant on SWIT and both tabular flows and ring dikes developed. The basalt of SWIT is alkalic olivine-augite, is high in incompatible elements and is similar to Early and Middle Miocene basalts of the Imperial Valley-northeastern Baja California region. Dacitic pyroclastic volcanism followed basaltic volcanism on SWIT, and between 14 and 11 Ma a protogulf developed which was filled with pyroclastic and conglomerate debris. At 11 Ma volcanism on SWIT became predominantly rhyolitic. First, rhyolite ignimbrite extruded, and, in the late Miocene, rhyolite pods, coulees, and crystal dikes developed. In the early Pliocene a dacitic ignimbrite with a tholeiitic character extruded reflecting conditions associated with modern Gulf of California rifting and seafloor spreading.

Download or read book Geology of Lower California Mexico written by Carl Hugh Beal and published by . This book was released on 1922 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geologic Structure of the Western Continental Margin of South Central Baja California Based on Seismic and Potential Field Data written by Shane Patrick Coperude and published by . This book was released on 1977 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine geophysical data from the continental margin of Baja California and the Gulf of California, and geological and geophysical data from the Baja California Peninsula and mainland Mexico, outline the major geologic and tectonic features of the Baja California Peninsula and the surrounding areas from 24.5° N. Lat. to 27.5° N. Lat. A crustal and subcrustal cross section consistent with observed gravity and magnetic anomalies, and constrained by seismic refraction stations and the mapped surface geology shows major variations of density and magnetization in these areas. A geologic interpretation of the cross section indicates the rocks of the Pacific continental margin are composed of unconsolidated and semiconsolidated sediments. Tertiary sedimentary rock, metamorphic rock of Franciscan type, and continental crystalline rock probably corresponding to the Peninsular Range batholith. The depth to mantle under the Baja California Peninsula is postulated to be 20 km. In the Gulf of California a section of low-density mantle beginning at a depth of 11 km is necessary to fit the observed gravity values and accounts for the low seismic velocities associated with the mantle in the Gulf. The correlation between the observed magnetic anomalies on the Pacific continental margin of the Baja California Peninsula and the theoretical magnetic anomalies expected from a spreading center shows that the youngest identifiable remanent anomaly on the Pacific side of south central Baja California is anomaly 3' formed at 6 my B.P. The remanent magnetic anomalies extend 50 km landward from the western edge of the continental slope.

Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1986 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: