Origin of high-magnesian andesites in the Setouchi volcanic belt, southwest Japan, I. Petrographical and chemical characteristics

Tatsumi, Yoshiyuki; Ishizaka, Kyoichi

doi:10.1016/0012-821x(82)90008-5

Cited by 255 publications

(88 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The geochemistry of the diorite dikes is consistent with them being derived from a depleted mantle source, similar to that proposed for other sanukitoids (Beyth et al, 1994;Heilimo et al, 2010;Martin, 1999;Martin et al, 2009Martin et al, , 2005. The sanukitoid HMA suite is widely considered to be generated through interaction of a mantle peridotite with a silicic melt derived from partial melting of a subducting oceanic slab and/or sediment (e.g., Yogodzinski et al, 1994;Tatsumi, 2001Tatsumi, , 2006Tatsumi and Hanyu, 2003;, consistent with experimental results that show that sanukitoid can be produced by partial melting of harzburgitic or lherzolitic mantle (Tatsumi, 2001;Tatsumi and Ishizaka, 1982).…”

Section: Petrogenesissupporting

confidence: 84%

“…The dikes are characterized by intermediate SiO 2 , low TiO 2 , relatively high Al 2 O 3 and MgO contents, with Mg# generally higher than 56 (56-59) similar to sanukitoids. Field observations, mineralogical, geochemical, whole rock Sr-Nd and zircon Hf isotopic data suggest that the dioritic dikes were generated by (Shimoda et al, 1998;Tatsumi, 2006;Tatsumi and Ishizaka, 1982) and references therein.…”

Section: Discussionmentioning

confidence: 99%

“…The inhomogeneous eHf(t) and eNd(t) values suggest that The Rb, Sr, Sm, Nd, U, Th, and Pb concentrations used in Table 4 are from Table 1. the sediment was added during ascent rather than in the source area which would tend to produce more uniform values. In summary, the geological setting, geochemistry and isotopic characteristics of the dioritic dikes suggest that they were generated by partial melting of mantle wedge that assimilated minor sediment ($3%) during the upwelling process analogous to sanukitoids in Japan (Shimoda et al, 1998;Tatsumi, 2006;Tatsumi and Ishizaka, 1982).…”

Section: Petrogenesismentioning

confidence: 99%

See 2 more Smart Citations

Geochronology and geochemistry of the high Mg dioritic dikes in Eastern Tianshan, NW China: Geochemical features, petrogenesis and tectonic implications

Zhang

Chen

et al. 2016

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

Section: Petrogenesissupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Petrogenesismentioning

confidence: 99%

See 1 more Smart Citation

Geochronology and geochemistry of the high Mg dioritic dikes in Eastern Tianshan, NW China: Geochemical features, petrogenesis and tectonic implications

Zhang

Chen

et al. 2016

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

“…Shasta lavas have been compared to the erupted products from the Setouchi belt in Japan, which have adakitic type high-Mg andesites. We plot the Ba/La ratios of the Shasta lavas and Setouchi lavas [Tatsumi and Ishizaka, 1982] and compare them to the slope of the LREE elements (La/Sm), and show that the inclusions fall within the range of the Shasta lavas with the exception of one of the AMOL inclusions which has a slightly steeper slope in the LREE (Fig 5-14). There is also overlap with the Pb/Ce ratios of all the inclusions, and as will be discussed later, has to be extremely H 2 O rich in order to form their mineral assemblages and compositions.…”

Section: Trace Element Geochemistrymentioning

confidence: 99%

Experimental studies of melting and crystallization processes in planetary interiors

Krawczynski¹

2011

View full text Add to dashboard Cite

Melting and crystallization processes on the Earth and Moon are explored in this thesis, and the topics of melt generation, transport, and crystallization are discussed in three distinct geologic environments: the Moon's mantle, the Greenland ice sheet, and the Earth's crust. Experiments have been conducted to determine the conditions of origin for two high-titanium magmas from the Moon. The lunar experiments (Chapter 2) were designed to explore the effects of variable oxygen fugacity (f O 2 ) on the high pressure and high temperature crystallization of olivine and orthopyroxene in high-Ti magmas. The results of these experiments showed that the source regions for the high-Ti lunar magmas are distributed both laterally and vertically within the lunar mantle, and that it is critical to estimate the pre-eruptive oxygen fugacity in order to determine true depth of origin for these magmas within the lunar mantle. Chapter 3 models the behavior of water flow through the Greenland ice sheet driven by hydrofracture of water through ice. The results show that melt water in the ablation zone of Greenland has almost immediate access to the base of the ice sheet in areas with up two kilometers of ice. Chapter 4 is an experimental study of two hydrous high-silica mantle melts from the Mt. Shasta, CA region. Crystallization is simulated at H 2 O saturated conditions at all crustal depths, and a new geobarometerhygrometer based on amphibole magnesium number is calibrated. In Chapter 5 I use the new barometer to study a suite of mafic enclaves from the Mt. Shasta region, and apply it to amphiboles in these enclaves. Evidence for pre-eruptive H 2 O contents of up to 14 wt% is presented, and bulk chemical analyses of the inclusions are used to show that extensive magma mixing has occurred at all crustal depths up to 35 km beneath Mt. Shasta. Tim Grove. I can never repay all the knowledge, time, trust, friendship, and guidance that you have freely given to me. You are more than an advisor; you made me feel like family. Your endless energy and passion for petrology has rubbed off on me, and has reinforced my desire to pursue the origins of igneous rocks. The time we spent in the field is the most fun I have ever had, and has taught me that geology necessarily happens in the field as well as the lab. Those experiences will shape the future of my geologic career. In the lab you trusted me to make my own scientific decisions, and then patiently helped me fix all the equipment I broke and set me straight on some of the wacky decisions I made! You read all of the early drafts of this thesis, practiced all my talks over and over with me, and at times I know it was painful, but you shaped me into a scientist. I am truly honored that my thesis will always sit right above your desk, with all of your great students. I hope that someday I will live up to your expectations of me and I promise to pass on the dedication and care to my own students that you have showed me. In the future, stop by for a visit in my thermodynamics/petrology/...

show abstract

“…1 (a). The volcanic chain is regarded as the Middle Miocene island arc volcanism and called the Setouchi volcanic belt, which is characterized by an occurrence of high-magnesian andesite (TATSUMI and ISHIZAKA, 1982;TATSUMI, 1983). Radiometric ages of those high-magnesian rocks range from 13Ma to 11Ma (TATSUMI et al, 1980).…”

Section: Introductionmentioning

confidence: 99%

Age Estimation of a High-Magnesian Andesite from the Kii Peninsula, Southwest Japan

Torii

Ishikawa

1986

J. geomagn. geoelec

View full text Add to dashboard Cite

Origin of high-magnesian andesites in the Setouchi volcanic belt, southwest Japan, I. Petrographical and chemical characteristics

Cited by 255 publications

References 41 publications

Geochronology and geochemistry of the high Mg dioritic dikes in Eastern Tianshan, NW China: Geochemical features, petrogenesis and tectonic implications

Geochronology and geochemistry of the high Mg dioritic dikes in Eastern Tianshan, NW China: Geochemical features, petrogenesis and tectonic implications

Experimental studies of melting and crystallization processes in planetary interiors

Age Estimation of a High-Magnesian Andesite from the Kii Peninsula, Southwest Japan

Contact Info

Product

Resources

About