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Record #175734:
- #175734
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MARC recordGeochemical and geochronologic constraints for genesis of a tonalite-trondhjemite suite and associated mafic intrusive rocks in the eastern Chugach Mountains, Alaska: a record of ridge-transform subduction / Virginia B. Sisson, and 7 others.
| Title: | Geochemical and geochronologic constraints for genesis of a tonalite-trondhjemite suite and associated mafic intrusive rocks in the eastern Chugach Mountains, Alaska: a record of ridge-transform subduction / Virginia B. Sisson, and 7 others. |
| Author(s): | Sisson, Virginia B. |
| Date: | 2003. |
| Publisher: | Boulder, CO : |
| In: | Geology of a transpressional orogen developed during ridge-trench interaction along the North Pacific Margin. (2003.), |
| Abstract: | Using trace element and Nd-Sr isotopic data, suggests that tonalitic magmas were derived from mixing of two sources: melted accretionary wedge sedimentary rocks and mafic material underplated at base of wedge at subduction of ridge; also mafic material could include metabasaltic amphibolites at Nunatak Fjord, having mid-ocean ridge basalt-composition protolith. |
| Notes: | In: Geology of a transpressional orogen developed during ridge-trench interaction along the North Pacific Margin / Virginia B. Sisson, Sarah M. Roeske, Terry L. Pavlis, eds. |
| Keywords: | 54.027 -- Isotope analysis. 550.4 -- Geochemistry. 550.93 -- Geochronology. 551.1/.4 -- Geology. 551.24 -- Geotectonics. 551.241 -- Plate tectonics. 552 -- Petrology. 552.3 -- Igneous rocks. 552.321.1 -- Granite. 552.321.5 -- Gabbro. 552.323.5 -- Basalt. B -- Geology and soil sciences. (*3) -- Arctic regions. (*49) -- Alaska. (*490) -- Alaska, southeastern. |
| SPRI record no.: | 175734 |
LDR 02000naa#a2200000#a#4500 001 SPRI-175734 005 20231201063317.0 007 ta 008 231201s2003####couab##|#####|0||#0#eng#d 035 ## ‡aSPRI-175734 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aSisson, Virginia B. 245 10 ‡aGeochemical and geochronologic constraints for genesis of a tonalite-trondhjemite suite and associated mafic intrusive rocks in the eastern Chugach Mountains, Alaska :‡ba record of ridge-transform subduction /‡cVirginia B. Sisson, and 7 others. 260 ## ‡aBoulder, CO :‡b[s.n.],‡c2003. 300 ## ‡ap. 293-326 :‡bill., diags., tables, maps. 500 ## ‡aIn: Geology of a transpressional orogen developed during ridge-trench interaction along the North Pacific Margin / Virginia B. Sisson, Sarah M. Roeske, Terry L. Pavlis, eds. 520 3# ‡aUsing trace element and Nd-Sr isotopic data, suggests that tonalitic magmas were derived from mixing of two sources: melted accretionary wedge sedimentary rocks and mafic material underplated at base of wedge at subduction of ridge; also mafic material could include metabasaltic amphibolites at Nunatak Fjord, having mid-ocean ridge basalt-composition protolith. 650 07 ‡a54.027 -- Isotope analysis.‡2udc 650 07 ‡a550.4 -- Geochemistry.‡2udc 650 07 ‡a550.93 -- Geochronology.‡2udc 650 07 ‡a551.1/.4 -- Geology.‡2udc 650 07 ‡a551.24 -- Geotectonics.‡2udc 650 07 ‡a551.241 -- Plate tectonics.‡2udc 650 07 ‡a552 -- Petrology.‡2udc 650 07 ‡a552.3 -- Igneous rocks.‡2udc 650 07 ‡a552.321.1 -- Granite.‡2udc 650 07 ‡a552.321.5 -- Gabbro.‡2udc 650 07 ‡a552.323.5 -- Basalt.‡2udc 650 07 ‡aB -- Geology and soil sciences.‡2local 651 #7 ‡a(*3) -- Arctic regions.‡2udc 651 #7 ‡a(*49) -- Alaska.‡2udc 651 #7 ‡a(*490) -- Alaska, southeastern.‡2udc 773 0# ‡7nnam ‡aVirginia B. Sisson, Sarah M. Roeske, Terry L. Pavlis, eds. ‡tGeology of a transpressional orogen developed during ridge-trench interaction along the North Pacific Margin. ‡dBoulder, CO : [s.n.], 2003. ‡wSPRI-168672 916 ## ‡a2006/06/20 -- JW 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20231201 ‡bJW