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Now showing items 15242-15261 of 37573
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(2004-07-01)This thesis investigates the behavior of major inorganic nutrients (P, N, Si), trace metals (Mn, Fe), and alkaline-earth metals (Ba) within Tillamook Bay over seasonal cycles and under a range of river discharge conditio ...
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(Seattle : University of Washington, 1971)The objectives for year have been the gathering of existing information, initiation of monitoring water quality, evaluation of analytical methods and procedures for measuring nutrient regeneration in the sediment-water i ...
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(College Station, Tex. : Ocean Drilling Program, Texas A & M University, 1995)Coring at ODP Sites 859, 860, and 861 near the Chile Triple Junction failed to recover anticipated gas hydrate that was inferred to be present from two lines of geophysical evidence: pre-cruise observation of a weak to ...
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(2011-07-20)The interaction of magma with continental crust at convergent margins is fundamental to understanding if and how continents grow. Isotopic and elemental data constrain the progressive stages of development of the magma ...
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(1990-09-11)The Pacific Ocean basin is home to a set of hotspots diverse in their eruption rate, duration of volcanism, and basalt chemistry. Pacific hotspots are found in a spectrum of distinct plate tectonic settings, from near ...
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([Corvallis, Or.] : College of Oceanic & Atmospheric Sciences, Oregon State University, 1999)Geophysical and biogeochemical processes associated with fluid venting from active and passive continental margins will receive significant scientific and economic attention into the next century and are of major societ ...
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([Corvallis, Or.] : College of Oceanic & Atmospheric Sciences, Oregon State University, 1998)
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(Corvallis, Or. : Oregon State University, 1980-07)
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(The National Academy of Sciences of the USA, 2007-04-17)The Younger Dryas cold interval represents a time when much of the Northern Hemisphere cooled from ≈12.9 to 11.5 kiloyears B.P. The cause of this event, which has long been viewed as the canonical example of abrupt clima ...
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(1999-07-30)
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(American Geophysical Union, 1995-11-10)Within the Australian-Antarctic Discordance (AAD), a boundary exists between isotopically defined “Pacific-type” and “Indian-type” mid-ocean ridge basalt (MORB) erupted along the Southeast Indian Ridge (SEIR). This bound ...
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(1999-03-30)The Absaroka volcanic province is the largest of Eocene volcanic fields in the northern Cordillera of the western U.S., and consists of 25,000 km2 of lava flows, shallow intrusions, ash-flow tuffs and volcaniclastic depo ...
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(1992-10-08)The Eyjafjöll Volcanic System, in southern Iceland, is a member of the Southeastern Volcanic Zone (SEVZ), a segment of the Mid-Atlantic Ridge. The SEVZ is a well-exposed (subaerial) propagating rift, analogous to the ...
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(American Geophysical Union, 1996-11-15)Particles were collected from the dilute portion of neutrally buoyant hydrothermal plumes from four Mid-Atlantic Ridge sites (MARK, 23°N; TAG, 26°N; Broken Spur, 29°N; Lucky Strike, 37°N). Comparison of data from proxima ...
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(American Geophysical Union, 2002-08-23)Bransfield Strait is a Quaternary, ensialic back arc basin at the transition from rifting to spreading. Fresh volcanic rocks occur on numerous submarine features distributed along the rift axis, including a discontinuo ...
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(1989-10-06)The Bransfield Strait is the narrow, late Tertiary to Quaternary marginal basin separating the South Shetland Islands from the northern end of the Antarctic Peninsula magmatic arc. Quaternary volcanism in the strait is t ...
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(1988-09-09)
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(Elsevier, 2010)We present new 3He surface exposure ages on moraines and bedrock near the summit of Mauna Kea, Hawaii, which refine the age of the Mauna Kea Ice Cap during the Local Last Glacial Maximum (LLGM) and identify a subsequent ...
Now showing items 15242-15261 of 37573
