An integrated petrologic, thermochronologic, and numerical modeling study constrains the thermal evolution of the Lesser Himalayan Sequence in the Kumaun and Garwhal regions of India. South of the Tons thrust, peak metamorphic temperatures do not exceed 330 °C. On the northern side, a transition toward higher temperatures adjacent to the Main Central thrust hanging wall is documented. In the im...

We review and refine the geological setting of an area located nearby Tyrrhenian seacoast, in inner zone Northern Apennines (southern Tuscany), where a Neogene monzogranite body (estimated about 3 km long, 1.5 wide, 0.7 thick) emplaced during early Pliocene. This magmatic intrusion, known as Gavorrano pluton, is partially exposed ridge bounded by regional faults delimiting broad structural depr...

The aim of the present contribution was to evaluate trace element mobility in olivine, low-Ca pyroxene and plagioclase Kargapole meteorite under thermal or impact metamorphic conditions recognition properties chondrule-forming events. compositions minerals were analyzed using an electron probe microanalyser (EPMA) a secondary ion mass spectrometer (SIMS). No considerable deviations concentratio...

At the Kakkonb geothermal area, Japan, a large Quaternary granitic body is dstributed below ca 2.5 km ckpth from the surface, associating with thick high-temperature contact me&amorphic zones in the overlying formations, and a meteoric-water-cbminated type hydrothermal system is developedat present time. During the 'Deep-seated Geothermal Resources Survey', WD-la well was drilled to 3729 m dept...

We estimated the protolith age and peak metamorphic temperature of Yokokawagawa rocks (YMR) east Itoigawa–Shizuoka Tectonic Line using detrital zircon U–Pb dating Raman carbonaceous material geothermometry, respectively. a psammitic rock yielded youngest ∼100 Ma, which corresponds to age. geothermometry results for five pelitic samples give temperatures ∼350–380 °C. The is consistent with those...

The Himalayan range exposes a spectacular assemblage of metamorphic rocks from the midand deep crust that have fostered numerous models of how the crust responds to continental collisions. Recent petrogenetically based petrologic and geochronologic studies elucidate processes with unprecedented resolution and critically test models that range from continuum processes to one-time events. The pro...