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Creator:: Salisbury, Morgan J.
Abstract:: This dissertation combines volcanological research of three convergent continental margins. Chapters 1 and 5 are general introductions and conclusions, respectively. Chapter 2 examines the spatiotemporal development of the Altiplano-Puna volcanic complex in the Lípez region of southwest Bolivia, a locus of a major Neogene ignimbrite flare- up, yet the least...
Resource Type:: Dissertation
Full Text:: and occurs in a region of ~70,000 km2 (21°S–24°S) east of the active arc front where base elevations

Creator:: Reusser, Deborah A.
Abstract:: Nonindigenous species are a major threat to the ecological integrity and biodiversity of marine and estuarine ecosystems. To become a successful invader, species must pass through four phases: (1) survive transport, (2) survive release, (3) establish a population, and (4) expand their range. To better understand these processes, an integrated...
Resource Type:: Dissertation
Full Text:: Biogeography of Nonindigenous Species: From Description to Prediction Deborah A

Creator:: Enos, Robert A.
Abstract:: At collisional mountain ranges the tectonic history of crustal shortening and subsequent post-collisional erosion is preserved in the form of the presently observed gravity anomalies. In this study, models of erosion and isostatic rebound at various stages of collision illustrate the evolution of crustal structure, topography, and resulting gravity anomalies....
Resource Type:: Masters Thesis
Full Text:: SrIsIsssIs e e 0 a 0 es e. es es e. e. 0. es 0. 0' Oslo sIsIsIsIsss S Figure 14 11111 MIDDLE AND LOWER

Creator:: Sharma, Ritu
Abstract:: Louisiana Army Ammunition Plant (LAAP), located near Shreveport, Louisiana, is a government-owned contractor-operated plant. Its purpose is to manufacture, load and assemble ammunition items. Area P has been used over the past 40 years to dump explosive-laden wastewater into 16 unlined lagoons. In 1989 LAAP was placed on the National...
Resource Type:: Capstone Project
Full Text:: Association. Hsiu-Hua, Liao and Udoyara S. Tim. 1994. Interactive Water Quality Modeling Within A GIS

Creator:: Ashley, Sara
Abstract:: Over 470 dams have been removed in the United States, and a significant increase in dam removals has occurred since the early 1990s. The aging of dams is often cited as the primary factor influencing removals; as dams surpass their functional life span, safety hazards, economic costs, and environmental concerns...
Resource Type:: Capstone Project
Full Text:: dam removals in the United States by Sara Ashley A research paper submitted to the Department of

Creator:: Falloon, Trevor J., Danyushevsky, Leonid V., Crawford, Tony J., Maas, Roland, Woodhead, Jon D., Eggins, Stephen M., Bloomer, Sherman H., Wright, Dawn J., Zlobin, Sergei K., and Stacey, Andrew R.
Abstract:: New seafloor mapping and sampling demonstrates that the eruption of the high-Ca boninites is clearly associated with rifting of the northern Tonga ridge and the northern Lau Basin at the northern termination of the Tonga Trench. There is very strong evidence for OIB plume related mantle sources involved in the...
Resource Type:: Article
Full Text:: microprobe standards. References Acland, A. S. (1996), Magma genesis in the northern Lau Basin, S. W

Creator:: Appel, Michael
Abstract:: The Clarno Formation is a series of volcanic, volcaniclastic, and related intrusive rocks located in central Oregon. It is the westernmost extent of a broader Eocene magmatic belt that covers much the western United States. The magmatic belt stretches eastward from Oregon to western South Dakota, and from the Canadian...
Resource Type:: Masters Thesis
Full Text:: also. O'Brien et al.'s favored model sug- gests that a devolitizing subducted slab caused

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