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Jasper Seamount

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Journal Article

Jasper Seamount: Seven million years of volcanism Available to Purchase

Malcolm S. Pringle, Hubert Staudigel, Jeff Gee
Journal: Geology
Published: 01 April 1991
Geology (1991) 19 (4): 364–368.
DOI: https://doi.org/10.1130/0091-7613(1991)019<0364:JSSMYO>2.3.CO;2
...Malcolm S. Pringle; Hubert Staudigel; Jeff Gee Abstract Jasper Seamount is a young, mid-sized (690 km 3 ) oceanic intraplate volcano located about 500 km west-southwest of San Diego, California. Reliable 40 Ar/ 39 Ar age data were obtained for several milligram-sized samples of 4 to 10 Ma...
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Journal Article

Gravity inversion using seminorm minimization; density modeling of Jasper Seamount Available to Purchase

P. T. C. Hammer, J. A. Hildebrand, R. L. Parker
Journal: Geophysics
Published: 01 January 1991
Geophysics (1991) 56 (1): 68–79.
DOI: https://doi.org/10.1190/1.1442959
... but do not reconstruct sharp discontinuities. We apply the algorithm to model the density structure of seamounts. Inversion of the sea-surface gravity field observed over Jasper Seamount suggests the edifice has a low average density of 2.38 g/cm 3 and contains a dense body within its western flank...
View PDF for article title, Gravity inversion using seminorm minimization; density modeling of <span class="search-highlight">Jasper</span> <span class="search-highlight">Seamount</span>
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Journal Article

GRAVITY ANOMALIES OFF THE WEST COAST OF NORTH AMERICA. 1: SEAMOUNT JASPER Available to Purchase

J. C HARRISON, W. C BRISBIN
Journal: GSA Bulletin
Published: 01 July 1959
GSA Bulletin (1959) 70 (7): 929–934.
DOI: https://doi.org/10.1130/0016-7606(1959)70[929:GAOTWC]2.0.CO;2
View PDF for article title, GRAVITY ANOMALIES OFF THE WEST COAST OF NORTH AMERICA. 1: <span class="search-highlight">SEAMOUNT</span> <span class="search-highlight">JASPER</span>
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Figure 10. Age vs. latitude plot for volcanoes offshore California and Baja California indicates multiple episodes of volcanism that are generally younger southward. Data from this study shown as filled squares, and data for offshore southern California seamounts (open squares) from Davis et al. (1995). Other data (circles) and sources: for Guadalupe Island from Batiza et al. (1979); for Henderson Seamount from Honda et al. (1987), for Jasper Seamount from Pringle et al. (1991), for Northeast Bank from Bohrson and Davis (1994), and for Fieberling from Lonsdale (1991)

Figure 10. Age vs. latitude plot for volcanoes offshore California and Baja... Available to Purchase

Published: 01 March 2002
. (1995) . Other data (circles) and sources: for Guadalupe Island from Batiza et al. (1979) ; for Henderson Seamount from Honda et al. (1987) , for Jasper Seamount from Pringle et al. (1991) , for Northeast Bank from Bohrson and Davis (1994) , and for Fieberling from Lonsdale (1991)
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Figure 4. Alkalis vs. silica plot for volcanic rocks (open symbols) and glasses (filled symbols). Compositions of volcanic rocks from Jasper Seamount (Gee et al., 1991), Guadalupe Island (Batiza, 1977a, 1977b), and middle Miocene volcanic rocks from onshore coastal California (Weigand and Savage, 1993; Cole and Basu, 1995) are shown for comparison. Data normalized to 100%. Classification of Cox et al. (1979). Bas. And.—basaltic andesite, Haw—hawaiite, N-MORB—normal mid-oceanic-ridge basalt, Smt.—seamount, Thol.—tholeiitic

Figure 4. Alkalis vs. silica plot for volcanic rocks (open symbols) and gla... Available to Purchase

Published: 01 March 2002
Figure 4. Alkalis vs. silica plot for volcanic rocks (open symbols) and glasses (filled symbols). Compositions of volcanic rocks from Jasper Seamount ( Gee et al., 1991 ), Guadalupe Island ( Batiza, 1977a, 1977b ), and middle Miocene volcanic rocks from onshore coastal California ( Weigand
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Figure 7. (A) Zr vs. Nb abundances of continental-margin volcanoes studied here (symbols as in Fig. 4) and in samples from Rodriguez (gray-shaded diamonds; Davis et al., 1995). The trend of these volcanic rocks is similar to that of the alkalic summit basalts from Jasper Seamount. Compositions of mildly alkalic lavas from Socorro Island, Mexico (Bohrson, 1993), and compositions of MORB from the Galapagos spreading center (GSC) (Perfit et al., 1983) are shown for comparison. (B) Ta vs. Nb abundances of the continental-margin volcanoes in this study show a narrow trend collinear with—but typically showing much higher values than—the trend of lavas from near-ridge seamounts at the East Pacific Rise (Niu and Batiza, 1997). Low Ta and Nb abundances of middle Miocene basalts from onshore coastal California (Cole and Basu, 1995) are compatible with a subduction-related signature. N-MORB (normal mid-oceanic- ridge basalt) values from Sun and McDonough (1989)

Figure 7. (A) Zr vs. Nb abundances of continental-margin volcanoes studied ... Available to Purchase

Published: 01 March 2002
Figure 7. (A) Zr vs. Nb abundances of continental-margin volcanoes studied here (symbols as in Fig. 4 ) and in samples from Rodriguez (gray-shaded diamonds; Davis et al., 1995 ). The trend of these volcanic rocks is similar to that of the alkalic summit basalts from Jasper Seamount. Compositions
Journal Article

Seamounts at the continental margin of California: A different kind of oceanic intraplate volcanism Available to Purchase

Alicé S. Davis, David A. Clague, Wendy A. Bohrson, G. Brent Dalrymple, H. Gary Greene
Journal: GSA Bulletin
Published: 01 March 2002
GSA Bulletin (2002) 114 (3): 316–333.
DOI: https://doi.org/10.1130/0016-7606(2002)114<0316:SATCMO>2.0.CO;2
.... (1995) . Other data (circles) and sources: for Guadalupe Island from Batiza et al. (1979) ; for Henderson Seamount from Honda et al. (1987) , for Jasper Seamount from Pringle et al. (1991) , for Northeast Bank from Bohrson and Davis (1994) , and for Fieberling from Lonsdale (1991) ...
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Journal Article

Porosity of the upper edifice of Axial Seamount Available to Purchase

Lisa A. Gilbert, Russell E. McDuff, H. Paul Johnson
Journal: Geology
Published: 01 January 2007
Geology (2007) 35 (1): 49–52.
DOI: https://doi.org/10.1130/G22892A.1
.... , Hildebrand , J.A. , and Parker , R.L. , 1991 , Gravity inversion using seminorm minimization: Density modeling of Jasper Seamount : Geophysics , v. v. 56 pp. 68 - 79 10.1190/1.1442959. Hammer , P.T.C. , Dorman , L.M. , Hildebrand , J.A. , and Cornuelle , B.D. , 1994...
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Journal Article

Deep-towed gravity surveys in the southern California Continental Borderland Available to Purchase

Jeff R. Ridgway, Mark A. Zumberge
Journal: Geophysics
Published: 01 January 2002
Geophysics (2002) 67 (3): 777–787.
DOI: https://doi.org/10.1190/1.1484521
... and Ogujiofor (1985) use surface gravity data to analyze the density structure of seamounts, as do Hammer et al. (1991) , who utilize a seminorm inversion algorithm to obtain the density structure of Jasper Seamount from shipboard gravity data. One study ( Hildebrand et al., 1990 ) deals with the loss...
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View PDF for article title, Deep-towed gravity surveys in the southern California Continental Borderland
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Journal Article

Samoa reinstated as a primary hotspot trail Available to Purchase

Anthony A.P. Koppers, Jamie A. Russell, Matthew G. Jackson, Jasper Konter, Hubert Staudigel, Stanley R. Hart
Journal: Geology
Published: 01 June 2008
Geology (2008) 36 (6): 435–438.
DOI: https://doi.org/10.1130/G24630A.1
.... 1991 , Jasper Seamount: Seven million years of volcanism: Geology , 19 , p. 364 – 368, doi: 10.1130/0091-7613(1991)019<0364:JSSMYO>2.3.CO;2. Ruellan E. Delteil J...
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Journal Article

The submarine volcanic succession of the basal complex of Fuerteventura, Canary Islands: A model of submarine growth and emergence of tectonic volcanic islands Available to Purchase

Margarita Gutiérrez, Ramón Casillas, Carlos Fernández, Kadosa Balogh, Agustina Ahijado, Carolina Castillo, Juan Ramón Colmenero, Encarnación García-Navarro
Journal: GSA Bulletin
Published: 01 July 2006
GSA Bulletin (2006) 118 (7-8): 785–804.
DOI: https://doi.org/10.1130/B25821.1
... stage ( Staudigel and Schmincke, 1984 ). Little is known in general about the geochemical evolution in these submarine stages of oceanic island volcano formation, but the Loihi seamount in Hawaii (e.g., Moore et al., 1982 ; Craig, 1983 ; Smith et al., 2002 ) and the Jasper seamount (NE Pacific...
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View PDF for article title, The submarine volcanic succession of the basal complex of Fuerteventura, Canary Islands: A model of submarine growth and emergence of tectonic volcanic islands
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Journal Article

Southern Louisiana salt dome xenoliths: First glimpse of Jurassic (ca. 160 Ma) Gulf of Mexico crust Available to Purchase

Robert J. Stern, Elizabeth Y. Anthony, Minghua Ren, Brian E. Lock, Ian Norton, Jun-Ichi Kimura, Takashi Miyazaki, Takeshi Hanyu, Qing Chang, Yuka Hirahara
Journal: Geology
Published: 01 April 2011
Geology (2011) 39 (4): 315–318.
DOI: https://doi.org/10.1130/G31635.1
... mineral associations have been reported for alkalic magmas from the Jasper ( Gee et al., 1991 ) and Line Island seamounts ( Natland, 1976 ). Ti-rich (∼5%–7% TiO 2 ) biotite is intergrown with magnetite and quartz. Magnetite has substantial jacobsite (Mn) and ulvospinel (Ti) components, typically (Mn 0.5...
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Oceanic intraplate volcanoes exposed: Example from seamounts accreted in Panama Available to Purchase

David M. Buchs, Richard J. Arculus, Peter O. Baumgartner, Alexey Ulianov
Journal: Geology
Published: 01 April 2011
Geology (2011) 39 (4): 335–338.
DOI: https://doi.org/10.1130/G31703.1
.... Shimizu N. Schiffman P. , 2009 , Geochemical stages at Jasper Seamount and the origin of intraplate volcanoes : Geochemistry Geophysics Geosystems , v. 10 , Q02001 , doi: 10.1029/2008GC002236 . Koppers A.A.P. Watts A.B. , 2010 , Intraplate seamounts as a window into deep Earth...
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Journal Article

Deformation mechanism paths for oceanic rocks during subduction and accretion: the Mesozoic forearc of Alexander Island, Antarctica Available to Purchase

P. A. DOUBLEDAY, T. H. TRANTER
Published: 01 June 1994
Journal of the Geological Society (1994) 151 (3): 543–554.
DOI: https://doi.org/10.1144/gsjgs.151.3.0543
... by cataclasis, combined with particulate flow in the volcaniclastic rocks. At shallow levels the clastic trench-fill sedimentary rocks deformed by independent particulate flow, which changed to cataclastic flow at depth. At those depths crystal plasticity affected the cherts and jaspers. At the deepest levels...
View PDF for article title, Deformation mechanism paths for oceanic rocks during subduction and accretion: the Mesozoic forearc of Alexander Island, Antarctica
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Geochemical discrimination and petrogenesis of alkalic basalt sequences in part of the Ankara melange, central Turkey Available to Purchase

P. A. FLOYD
Published: 01 June 1993
Journal of the Geological Society (1993) 150 (3): 541–550.
DOI: https://doi.org/10.1144/gsjgs.150.3.0541
.... Integrated models of basalt petrogenesis: a study of quartz tholeiites to olivine melilitcs from southeastern Australia utilizing geochemical and experimental penological data Journal of Petrology 1978 19 463 513 Gee J. Staudigel H. Natland J. Geology and petrology of Jasper Seamount...
View PDF for article title, Geochemical discrimination and petrogenesis of alkalic basalt sequences in part of the Ankara melange, central Turkey
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Journal Article

Geochemistry of Jasper Beds from the Ordovician Løkken Ophiolite, Norway: Origin of Proximal and Distal Siliceous Exhalites Available to Purchase

Tor Grenne, John F. Slack
Journal: Economic Geology
Published: 01 December 2005
Economic Geology (2005) 100 (8): 1511–1527.
DOI: https://doi.org/10.2113/gsecongeo.100.8.1511
...Tor Grenne; John F. Slack Abstract Stratiform beds of jasper (hematitic chert), composed essentially of SiO 2 (69–95 wt %) and Fe 2 O 3 (3–25 wt %), can be traced several kilometers along strike in the Ordovician Løkken ophiolite, Norway. These siliceous beds are closely associated...
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View PDF for article title, Geochemistry of <span class="search-highlight">Jasper</span> Beds from the Ordovician Løkken Ophiolite, Norway: Origin of Proximal and Distal Siliceous Exhalites
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Shale-normalized trace element patterns. (a). Representative samples of jasper and hematitic slate from the Løkken ophiolite (jasper locations: H-16 = Høydal east, H-6 = Høydal deposit, H-12 = Høydal west, L-3 = Løkken, S-6 = Svinsås). The shaded field shows typical compositions of Løkken basalt for comparison. (b). Modern sea-floor vent-related iron oxyhydroxide deposits and plume particles. Data sources: (1) average iron oxyhydroxide deposits, Franklin Seamount (Bogdanov et al., 1997); (2) average plume particles, EPR 8°40′ to 11°50′N (Feely et al., 1994b); (3) average plume particles, EPR 9°45′N (Sherrell et al., 1999); (4) average plume particles, Juan de Fuca Ridge (Feely et al., 1992). Plume particle concentrations are recalculated to 50 wt percent Fe2O3 for comparison. (c) Seawater (Bruland, 1983; Donat and Bruland, 1995), end-member submarine hydrothermal black smoker solutions (ca.350°C) from the TAG, MARK, and EPR 21°N vent fields (Chen et al., 1986; Von Damm, 1990; Klinkhammer et al., 1994; Mills and Elderfield, 1995; Metz and Trefry, 2000; Douville et al., 2002), and white smoker solution (ca.300°C) from the Vai Lili hydrothermal field, Lau basin (Fouquet et al., 1993; Douville et al., 1999). Note different scale in (c). Concentrations are normalized to the North American Shale Composite (NASC; Gromet et al., 1984) except for V, P, Cu, Zn, Pb, and Mo which are normalized to average upper crust (Taylor and McLennan, 1995). Values below detection limit in (a) are shown by open symbols.

Shale-normalized trace element patterns. (a). Representative samples of jas... Available to Purchase

Published: 01 December 2005
F ig . 6. Shale-normalized trace element patterns. (a). Representative samples of jasper and hematitic slate from the Løkken ophiolite (jasper locations: H-16 = Høydal east, H-6 = Høydal deposit, H-12 = Høydal west, L-3 = Løkken, S-6 = Svinsås). The shaded field shows typical compositions
Journal Article

Allochthonous oceanic basalts within the Mesozoic accretionary complex of Alexander Island, Antarctica: remnants of proto-Pacific oceanic crust Available to Purchase

P. A. DOUBLEDAY, P. T. LEAT, T. ALABASTER, P. A. R. NELL, T. H. TRANTER
Published: 01 February 1994
Journal of the Geological Society (1994) 151 (1): 65–78.
DOI: https://doi.org/10.1144/gsjgs.151.1.0065
...P. A. DOUBLEDAY; P. T. LEAT; T. ALABASTER; P. A. R. NELL; T. H. TRANTER Abstract The Mesozoic LeMay Group accretionary complex of Alexander Island, Antarctica, contains thrust-bound slices of accreted ocean floor, ocean islands and seamounts. They represent fragments of proto-Pacific oceanic crust...
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Toroidal flow around the Tonga slab moved the Samoan plume during the Pliocene Available to Purchase

Kevin Konrad, Matthew Jackson, Bernhard Steinberger, Anthony Koppers, Andrea Balbas, Valerie Finlayson, Jasper Konter, Allison Price
Journal: Geology
Published: 03 January 2024
Geology (2024) 52 (3): 176–180.
DOI: https://doi.org/10.1130/G51588.1
...Kevin Konrad; Matthew Jackson; Bernhard Steinberger; Anthony Koppers; Andrea Balbas; Valerie Finlayson; Jasper Konter; Allison Price Abstract Age-progressive seamount tracks generated by lithospheric motion over a stationary mantle plume have long been used to reconstruct absolute plate motion (APM...
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The source of platinum group elements in basalts of the ophiolite complex of the Kamchatsky Mys Peninsula (Eastern Kamchatka) Available to Purchase

D.P. Savelyev, S.V. Palesskii, M.V. Portnyagin
Published: 01 December 2018
Russ. Geol. Geophys. (2018) 59 (12): 1592–1602.
DOI: https://doi.org/10.1016/j.rgg.2018.12.005
... section of ophiolite complex compose the Smagin rock association ( Khotin and Shapiro, 2006 ) of the intraoceanic Smagin Seamount ( Avdeiko et al, 2007 ). In the present-day structure, the jaspers, limestones, and basalts of the Smagin association occur as tectonic plates and blocks in the tuff–silicate...
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View PDF for article title, The source of platinum group elements in basalts of the ophiolite complex of the Kamchatsky Mys Peninsula (Eastern Kamchatka)
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