Download Serpentine Geoecology of Western North America: Geology, by Earl B. Alexander, Robert G. Coleman, Todd Keeler-Wolfe, PDF
By Earl B. Alexander, Robert G. Coleman, Todd Keeler-Wolfe, Susan P. Harrison
Geoecology is a fruitful interdisciplinary box, referring to rocks to soils to plant and animal groups and learning the interactions among them. smooth geoecology specially concentrates on displaying how geology and soils have an effect on the constitution, composition, and distribution of plant groups in a undeniable study region. This booklet applies the rules of geoecology to Western North the United States, and to a selected type of rock, the interesting serpentine belts that run alongside the continental margins of the West Coast from Alaska to Baja. The authors come from diverse disciplines: Alexander is a soil scientist, Coleman a geologist, Harrison a organic researcher, and Keeler-Wolfe a crops ecologist.It starts off with an summary of the geology of this rock and this zone, overlaying mineralogy, petrology, and stratigraphy of West Coast serpentine. it is going to proceed with serpentine soils and their improvement and distribution, and serpentine results on vegetation and plants and animals. The serpentine geoecology of the various areas of Western North the USA, focusing on California, will finish the examine. So, this educational publication should still entice plant ecologists, soil scientists, researchers in geoecology, and scholars in complicated classes in soil technology.
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Additional info for Serpentine Geoecology of Western North America: Geology, Soils, and Vegetation
Example text
We attempt to clarify our usage of terms for ultramafic rocks in this book because soils developed on slightly serpentinized ultramafics are different from those derived from serpentinite. Most of the ultramafic rocks in western North America are associated with assemblages of mafic and ultramafic rocks that are referred to as ophiolite (Coleman 1977). The term “ophiolite” was first introduced by Brongniart (1813) to describe an assemblage of rocks consisting of peridotite–serpentinite, gabbro, diabase–basalt, and chert.
1969. The relationship between fluids in some fresh alpine-type ultramafics and possible modern serpentinization, western United States. Geological Society of America Bulletin 80: 1947–1960. R. O’Neil. 1971. Calcium-magnesium carbonate solid solutions from Holocene conglomerate and travertines in the Coast Ranges of California. Geochimica et Cosmochimica Acta 35: 699–718. C. LaMarche, and G. Himmelberg. 1967. Geochemical evidence of present day serpentinization. Science 156: 830–832. R. O’Neil. 1978.
Dubakella (NRCS pedon S74CA-093-014 in Siskiyou County) is a Mollic Haploxeralf with an open forest plant community, and Obispo (pedon CR2 sampled in Santa Clara County for a 1999 Western Society of Soil Science field trip and analyzed in the laboratory of R. Southard, University of California-Davis) is a Lithic Haploxeroll with an herbaceous plant community. Physical weathering occurs in all climates, but it is generally subordinate to chemical weathering. In many cases, it is not possible to differentiate clearly between physical and chemical processes.