Deformation and metamorphism
Modeling, describing, measuring and interpreting porphyroblast inclusion trails to understand inter-relationships between deformation, metamorphism and tectonism
... between deformation and metamorphism, yet detailed approaches on how they can be described and interpreted, aside from changes in FIA trend, are rarely ...
124
Coal Deformation, Metamorphism and Tectonic Environment in Xinhua, Hunan
... and metamorphism with structural environment in Xinhua Hunan by coal quality analysis, XRD and SEM methods, which provide dependable theoretical foundation for coal resource exploitation and ...ductile-brittle ...
13
Stepwise exhumation of the Triassic Lanling high-pressure metamorphic belt in Central Qiangtang, Tibet: Insights from a coupled study of metamorphism, deformation, and geochronology
... facies metamorphism at depth according to sparsely distributed Gln grains, the relic basaltic bulks still preserved the original lava textures, such as vesicular/amygdaloidal structures, and display the ...
19
Deformation and metamorphism of the Aileu formation, East Timor
... A major block of metamorphic rocks, Aileu Formation, crops out in the northwest of East Timor.. Four factors favoured the detailed.[r] ...
413
Deformation and metamorphism of the Sukhothai fold belt, northern Thailand
... Petrographic criteria and observed sedimentary features suggest that the Jurassic sandstones (the Phra Wihan Formation) were derived from a quartzose recycled orogenic source o[r] ...
408
Links between metamorphism and deformation in feldspar at mid-crustal conditions
... fundamental deformation mechanism of Earth materials, but the way a microstructure evolves during diffusion creep remains poorly ...simulate deformation by diffusion creep, was used to explore the ...
213
Modeling, describing, measuring and interpreting porphyroblast inclusion trails to understand inter-relationships between deformation, metamorphism and tectonism
... “porphyroblasts”. Effects of shearing only (fixed velocity applied to the top and bottom with these constrained to remain straight and parallel; sides are free) after millipede geometries were developed by bulk ...
75
Evaluating the importance of metamorphism in the foundering of continental crust
... during metamorphism, as it lacks peritectic phase assemblages and maintains incompatible-element-rich whole-rock compositions 21 ...patchy deformation and recrystallization at ~750 °C and ...
12
Structure, metamorphism and tectonics of the Central Nepal Himalayas
... calculation of average PT conditions with various rim geothermobarometric methods from the compositions of garnet rims and surrounding biotite, muscovite and plagioclase grains. Different generations of crenulated matrix ...
117
Structure, metamorphism and tectonics of the Central Nepal Himalayas
... heterogeneous deformation would be partitioned into the coaxially short- ened zones as ...of deformation suggested by the coaxial geometries of inclusion trails in most porphyroblasts from orogen cores ...
106
Variscan metamorphism in Sardinia, Italy: review and discussion
... Three deformation phases (D 1 , D 2 and D 3 ) were identified by Conti et ...1 deformation can be subdivided into four different phases: Gerrei, Meana, Sar- rabus and ...mylonitic deformation ...
36
Shock metamorphism of some minerals: Basic introduction and microstructural observations
... The deformation and transformation effects largely form during the compression phase of shock waves, whereas decomposition, melting and vaporisation are temperature dominated processes, which take place during the ...
18
Rates of retrograde metamorphism and their implications for the rheology of the crust: an experimental study
... Additional experiments were run at 3008C and 5008C and at lower pressures (40 MPa), as well as with NaCl; rates appear to be faster at higher temperatures and in the presence of salt, but slower at low pressure. ...
20
Seismic imaging of slab metamorphism and genesis of intermediate-depth intraslab earthquakes
... plastic deformation. Conse- quently, plastic deformation proceeds rapidly until materials in that portion of the slab start to melt, which results in sudden slips, ...
31
Low grade regional metamorphism of paleozoic rocks in the Midland valley of Scotland
... burial metamorphism may have been ...burial metamorphism described ...burial metamorphism beneath the Devonian basin separating the Graighead inlier and the Girvan Main Outcrop (Mykura, 1983), Bo ...
432
Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
... boundary ( Fig. 2A, B ). The resulting granite body is 1.2km long and 100–150m wide. The regional metamorphic foliation trend deflects around the Río de los Sauces granite, implying that after solidification, it also ...
14
Early Caledonian high-grade metamorphism within exotic terranes of the Troms Caledonides?
... The Scandinavian C aledonides are characterized by a series of ftat-lying nappes emplaced onto the Baltoscan dian Craton with its platform cover sediments during Early to Mid-Paleozoic closure of the Iapetus Ocean. ...
5
Types, Grades and Facies of Metamorphism
... of metamorphism but without precise designation of the temperatures and pressures ...in metamorphism be divided into five parts, and the corresponding metamorphism may be designated as: very low-, ...
11
Diffusion modelling to constrain the duration of metamorphism
... Measurement of the diffusion profiles that are present adjacent to ilmenite inclusions in garnet provides a means for d etermining timesca les of thermal events, as the [r] ...
300
Metamorphism and Tectonics in Southern Madagascar : An Overview
... The cstablishrnent of the late-Precambrian finite strain pattern in southern Madagascar requires first deciphering of the present-day crustal strucure of the island as well as [r] ...
8