Petrogenesis of Middle Miocene Primitive Basalt, Andesite and Garnet-bearing Adakitic Rhyodacite from the Ryozen Formation: Implications for the Tectono-magmatic Evolution of the NE Japan Arc

Name: Work Video:
Duration: 3 min 30 s
Kenji Shuto; Makoto Sato; Hiroshi Kawabata; Yasuhito Osanai; Nobuhiko Nakano; Ryuichi Yashima
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[155, 239, 360], 'SiO2': [156], 'versus': [157], 'major': [158, 295], 'diagrams,': [163], 'suggests': [164], 'may': [168], 'have': [169], 'resulted': [170, 359], 'from': [171, 279], 'fractional': [172], 'crystallization': [173], 'basaltic': [175], 'minor': [178, 277], 'assimilation': [179], 'pre-Cretaceous': [181], 'sedimentary': [182], '(i.e.': [184], 'an': [185, 280], 'AFC': [186], 'process).': [187], 'phenocrysts': [192], 'plagioclase,': [194, 270], 'amphibole,': [195, 273], 'garnet': [196], 'titanomagnetite,': [198], 'characterized': [201], 'low': [203, 207, 218, 253, 311, 388], 'Sr/Y': [204, 254, 312, 391], '(∼30),': [206], 'Y': [208], 'concentrations': [209], '(<10': [210], 'ppm),': [211], 'chondrite-normalized': [213, 219], 'La/Yb': [214], '[(La/Yb)cn]': [215], '(>25)': [216], 'Yb': [220], '[(Yb)cn]': [221], 'values': [222], '(<5': [223], 'ppm).': [224], 'These': [225], 'are': [228], 'similar': [229], 'those': [231], 'new': [234], 'adakite': [235], 'subgroup': [236], '(rhyodacite': [237], 'lavas': [238], 'eastern': [240], 'Jamaica;': [241], 'Jamaican-type': [242], 'adakite).': [243], 'Thus,': [244], 'we': [245], 'define': [246], 'as': [250, 300, 302], 'rhyodacite.': [256, 314], 'A': [257], 'potential': [258], 'mechanism': [259, 285], 'generation': [262], 'crystal': [267], 'orthopyroxene,': [271], 'clinopyroxene,': [272], 'garnet,': [274], 'titanomagnetite': [275], 'apatite': [278], 'andesitic': [281], 'parent': [282], 'magma.': [283], 'This': [284, 358], 'consistent': [287], 'mass-balance': [289], 'modeling,': [290], 'matches': [292], 'observed': [294], 'chemistry,': [299], 'well': [301], 'SrI': [303], 'NdI,': [305], 'most': [316], 'likely': [317], 'tectono-magmatic': [318], 'model': [319], 'production': [322, 379], 'Formation': [330], 'involves': [331], 'upwelling': [333], 'depleted': [335], 'hot': [336], 'asthenosphere,': [337], 'modified': [339], 'thermal': [341], 'structure': [342], 'mantle': [345, 365], 'wedge': [346, 366], 'beneath': [347], 'arc': [353], 'during': [354], 'Miocene.': [357], 'partial': [361], 'melting': [362], 'both': [364], 'peridotite': [367], 'relatively': [370], 'cool': [371], 'subducting': [372], 'Pacific': [373], 'plate,': [374], 'leading': [375], 'simultaneous': [378], 'basalt,': [382], 'normal': [383], 'andesite,': [384], 'high-magnesium': [385], 'rhyodacites.': [393]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2032456323', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 5}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 5}, {'year': 2014, 'cited_by_count': 2}], 'updated_date': '2025-01-09T15:32:38.008969', 'created_date': '2016-06-24'}
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