Journal of Metamorphic Geology

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Strain‐related differences in the crystal growth of white mica and chlorite: a TEM and XRD study of the development of metapelitic microfabrics in the Southern Uplands thrust terrane, Scotland
Journal of Metamorphic Geology - Tập 13 Số 5 - Trang 559-576 - 1995
R. J. Merriman, Brian J. Roberts, Donald R. Peacor, Steven Hirons
Abstract TEM and XRD techniques were used to study crystal growth characteristics of the fabric‐forming phyllosilicates which developed in response to low‐grade metamorphism and tectonic imbrication in part of the Southern Uplands thrust terrane. Prograde regional metamorphism, ranging from late diagenesis through the anchizone to the epizone, was accompanied b...... hiện toàn bộ
An automated strategy for calculation of phase diagram sections and retrieval of rock properties as a function of physical conditions
Journal of Metamorphic Geology - Tập 20 Số 7 - Trang 697-708 - 2002
J. A. D. Connolly, K. Petrini
AbstractWe formulate an algorithm for the calculation of stable phase relations of a system with constrained bulk composition as a function of its environmental variables. The basis of this algorithm is the approximate representation of the free energy composition surfaces of solution phases by inscribed polyhedra. This representation leads to discretization of hig...... hiện toàn bộ
Một giai đoạn kéo dài của dòng chảy chất lỏng biến chất đầu kỷ Mesoproterozoic ở dãy Reynolds, Trung Australia* Dịch bởi AI
Journal of Metamorphic Geology - Tập 14 Số 1 - Trang 29-47 - 1996
Ian S. Williams, I. S. Buick, Ian Cartwright
TÓM TẮT Các sản phẩm của dòng chảy chất lỏng biến chất được bảo tồn trong các vùng trong đá cẩm thạch và đá bán điển hình đã biến chất của Đơn vị Calcsilicate trên cùng trong phần granulite của Nhóm Reynolds Range thuộc kỷ Palaeoproterozoic muộn, phía bắc khối Arunta, Trung Australia. Các vùng tái phát triển, đặc trưng bởi các khoáng vật như wollastonite, grossular v...... hiện toàn bộ
The metamorphic signature of contemporaneous extension and shortening in the central Himalayan orogen: data from the Nyalam transect, southern Tibet
Journal of Metamorphic Geology - Tập 11 Số 5 - Trang 721-737 - 1993
K. V. Hodges, B. C. Burchfiel, L. H. Royden, Z. Chen, Y. Liu
Abstract Geological relationships and geochronological data suggest that in Miocene time the metamorphic core of the central Himalayan orogen was a wedge‐shaped body bounded below by the N‐dipping Main Central thrust system and above the N‐dipping South Tibetan detachment system. We infer that synchronous movement on these fault systems expelled the metamorphic...... hiện toàn bộ
Metamorphic evolution and SIMS U–Pb geochronology of orthopyroxene‐bearing high‐Psemipelitic granulite in the Fuping area, middle Trans‐North China Orogen
Journal of Metamorphic Geology - Tập 39 Số 3 - Trang 297-320 - 2021
Jiahui Liu, Qian W.L. Zhang, Juan Wang, Hui C.G. Zhang, Chun‐Ming Wu
AbstractThe Fuping area lies in the middle part of the Trans‐North China Orogen, which is a critical region for understanding the metamorphic–tectonic evolution of this orogenic belt in the Precambrian. The newly discovered orthopyroxene‐bearing semipelitic granulite in this area is a coherent stratigraphic unit, among which three generations of metamorphic mineral...... hiện toàn bộ
P–T–t evolution of garnet amphibolites in the Wutai–Hengshan area, North China Craton: insights from phase equilibria and geochronology
Journal of Metamorphic Geology - Tập 34 Số 5 - Trang 423-446 - 2016
Jiahui Qian, Chunjing Wei
AbstractGarnet amphibolites can provide valuable insights into geological processes of orogenic belts, but their metamorphic evolution is still poorly constrained. Garnet amphibolites from the Wutai–Hengshan area of the North China Craton mainly consist of garnet, hornblende, plagioclase, quartz, rutile and ilmenite, with or without titanite and epidote. Four sampl...... hiện toàn bộ
Petrology, phase equilibria modelling and zircon U–Pb geochronology of Paleoproterozoic mafic granulites from the Fuping Complex, North China Craton
Journal of Metamorphic Geology - Tập 35 Số 5 - Trang 517-540 - 2017
Li Tang, M. Santosh, Toshiaki Tsunogae, Tatsuya Koizumi, Xin‐Kai Hu, Xuejian Teng
AbstractThe Fuping Complex is one of the important basement terranes within the central segment of the Trans‐North China Orogen (TNCO) where mafic granulites are exposed as boudins within tonalite–trondhjemite–granodiorite (TTG) gneisses. Garnet in these granulites shows compositional zoning with homogen...... hiện toàn bộ
High‐pressure granulites in the Sanggan area, North China craton: metamorphic evolution, P–T paths and geotectonic significance
Journal of Metamorphic Geology - Tập 20 Số 8 - Trang 741-756 - 2002
Jinghui Guo, Patrick J. O’Brien, Mingguo Zhai
AbstractHigh‐pressure basic granulites are widely distributed as enclaves and sheet‐like blocks in the Huaian TTG gneiss terrane in the Sanggan area of the Central Zone of the North China craton. Four stages of the metamorphic history have been recognised in mineral assemblages based on inclusion, exsolution and reaction textures integrated with garnet zonation pat...... hiện toàn bộ
Origin and metamorphism of ultrabasic rocks associated with a subducted continental margin, Naxos (Cyclades, Greece)
Journal of Metamorphic Geology - Tập 17 Số 3 - Trang 301-318 - 1999
Yaron Katzir, Dov Avigad, Matthews, GARFUNKEL, Evans
Meta‐peridotites outcropping at different structural levels within the Alpine metamorphic complex of the Cycladic island of Naxos were studied to re‐examine their metamorphic evolution and possible tectonic mechanisms for emplacement of mantle material into the continental crust. The continental margin section exposed on Naxos, consisting of pre‐Alpine basement and c. ... hiện toàn bộ
Thermobarometry of phengite‐bearing eclogites in the Dabie Mountains of central China
Journal of Metamorphic Geology - Tập 15 Số 2 - Trang 239-252 - 1997
D. A. Carswell, Patrick J. O’Brien, Robert N. Wilson, M. Zhai
Pressure–temperature conditions for formation of the peak metamorphic mineral assemblages in phengite‐bearing eclogites from Dabieshan have been assessed through a consideration of Fe2+–Mg2+ partitioning between garnet–omphacite and garnet–phengite pairs and of the reaction equilibrium celadonite+pyrope+grossular=muscovite+diopside, which incorpora...... hiện toàn bộ
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