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3篇 您的检索式:作者名="R.S.Borch"
    题名 作者 年代 出处 被引量
1橄榄石显微构造和中国东部上地幔流动应力显示文摘笔者对中国东部11个玄武岩产地的幔源包体(尖晶石或石榴石二辉橄榄岩)显微构造研究结果表明,橄榄石位错构造类型与目前世界上其它地方报道成果和高温高压岩石变形实验资料是相似的。橄榄石亚颗粒(100)、(001)分布广泛,形状规则,它是中国上地幔中典型稳态显微构造。大部分样品中,亚颗粒大小显示对数正态分布,计算说明中国东部上地幔高温蠕变流动应力为10~50MPa,局部地区伴随有较高差异应力,120~170MPa。低温高应变率{110}滑移条带在成因上与深源断层有关,但主要与幔源包体萃取过程有关。金振民 H.W.GreenⅡ R.S.Borch 1989地球科学(中国地质大学学报)1989,14,S1:10
2幔源包体和中国东部现代弧后地热标志显示文摘利用矿物学、岩石学、组构,显微构造和红外光谱的综合分析方法,研究了福建省明溪石榴石和尖晶石-石榴石二辉橄榄岩包体。根据Bertrand和Mecier温度计、Nickel和Green压力计方法,利用TEMPEST最新程序分别计算了包体平衡温度和压力,其变化范围为:1300K,1.9GPa(60km)至1500K 2.6GPa(80km)。由包体温压资料推断的明溪地区地热与实测地表热流量(70mW/m^2)一致。地热特征、包体矿物显微构造和优选方位与现代伸展弧后环境的岩石圈减薄作用是一致的。金振民 H.W.Green II R.S.Borch 金淑燕 T. N. Tracy T.E.Young 1993中国科学(B辑)1993,23,4:8
3Mantle-derived Xenoliths and the Token of a Modern Back-Arc Geotherm Beneath Eastern China显示文摘Xenoliths of garnet and spinel-garnet 1herzolite from Mingxi, Eastern China have been studied in terms of comprehensive methods of mineralogy, petrology, fabrics, mierostructures and infrared spectrum. The temperature and pressure equilibration of the xenolith have been calculated using the TEMPEST program with the two-pyroxene geothermometer of Bertrand and Mercier (1985) combined with the geobarometer of Nickel and Green (1985). The temperature and pressure of xenoliths range from^1300 K at 1. 9 GPa (60 km) to ~1500 K at 2. 6 GPa (80 km). The geotherm inferred from xenolith is excellently consistent with the measured surface heat flow (70 mW/m2) in Mingxi. A character of geothermal curve and conductive type suggest that these xenoliths are from the lithosphere, not from the asthenosphere. The geotherm and mierostructures and preferred orientations of minerals in the xenolith are consistent with tecon-ic thinning of the lithosphere in the present-day extensional back-arc environment.金振民 H.W.GreenII R.S.Borch 金淑燕 T.N.Tingle T.E.Young 1994Science China Chemistry1994,37,4:1
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