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Date: 2011
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/154319
Description: Uranium-series isotopes (²³⁸U-²³⁰Th-²²⁶Ra-²¹⁰Pb), major element, trace element, and Sr-Nd isotopic data are presented for recent (<60 years old) Galpagos archipelago basalts. Volcanic rocks from all c ... More
Reviewed: Reviewed
Date: 2010
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/112634
Description: Isotopes of the U-decay series, such as ²³⁸U-²³⁰Th-²²⁶Ra, have been used successfully to study timescales of magmatic processes. This study provides an overview of a shorter lived isotope pair, ²¹⁰Pb- ... More
Reviewed: Reviewed
Date: 2007
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1143146
Description: This study presents major- and trace-element chemistry of plagioclase phenocrysts from the 1980 eruptions of Mount St. Helens volcano. Despite the considerable variation in textures and composition of ... More
Reviewed: Reviewed
Date: 2007
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/19601
Description: On White Island, New Zealand, the intensified period of strombolian–volcanian and phreatomagmatic explosive activity that commenced in March 1977 led to eruption of unusually primitive, high-Mg andesi ... More
Reviewed: Reviewed
Date: 2006
Subject Keyword: 040200 Geochemistry | 040300 Geology
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1087368
Reviewed: Reviewed
Date: 2006
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/10188
Description: Disequilibria between ²¹⁰Pb and ²²⁶Ra can be used to trace magma degassing, because the intermediate nuclides, particularly ²²²Rn, are volatile. Products of the 1980–1986 eruptions of Mount St. Helens ... More
Reviewed: Reviewed
Date: 2005
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/1212189
Description: 1 page(s)
Date: 2005
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/1225775
Date: 2005
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/1225628
Date: 2004
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/1219013
Date: 2004
Subject Keyword: 040200 Geochemistry
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/37818
Description: The importance of the interplay between degassing and crystallization before and after the eruption of Mount St. Helens (Washington, USA) in 1980 is well established. Here, we show that degassing occu ... More
Reviewed: Reviewed
Date: 2004
Subject Keyword: 040300 Geology
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/1092428
Description: 16 page(s)
Reviewed: Reviewed
Date: 2004
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/16784
Description: New data show that island arc rocks have (²¹⁰Pb/²²⁶Ra)o ratios which range from as low as 0.24 up to 2.88. In contrast, (²²⁸Ra/²³²Th) appears always within error of 1 suggesting that the large ²²⁶Ra-e ... More
Reviewed: Reviewed
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