Whole rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): are they consistent with a partial melting process?

2000 ◽  
Vol 64 (4) ◽  
pp. 695-716 ◽  
Author(s):  
E Takazawa ◽  
F.A Frey ◽  
N Shimizu ◽  
M Obata
Keyword(s):  
Partial Melting ◽  
Upper Mantle ◽  
Melting Process ◽  
Mantle Peridotite ◽  
Partial Melting Process ◽  
Compositional Variations

scholarly journals Intensive Improvement of Cementite Synthesis

2020 ◽  
Vol 5 (2) ◽  
pp. 218-220
Author(s):  
Amir Peyman Soleymani ◽  
Masoud Panjepour ◽  
Mahmood Meratian
Keyword(s):  
Mechanical Properties ◽  
Mechanical Activation ◽  
Carbon Content ◽  
Partial Melting ◽  
Melting Process ◽  
Free Carbon ◽  
Partial Melting Process

Cementite extraordinary mechanical properties have drawn the attention of researchers in recent years. But, the limited methods for the production of this material, led to the production of iron with more than 2.1%wt carbon content beside free carbon by simultaneous thermal-mechanical activation of hematite and graphite mixture at 800°C for 6 hours in the present research. Then, a structure with more than 80%wt cementite was obtained through partial melting process at 1180°C for 25 minutes.

S-type granites in the western Superior Province: a marker of Archean collision zones

2019 ◽  
Vol 56 (12) ◽  
pp. 1409-1436 ◽  
Author(s):  
Xue-Ming Yang ◽  
Derek Drayson ◽  
Ali Polat
Keyword(s):  
Partial Melting ◽  
Melting Process ◽  
Granulite Facies ◽  
Source Rocks ◽  
Crustal Thickening ◽  
Superior Province ◽  
Partial Melting Process ◽  
High K ◽  
Geochemical Variations ◽  
Tectonic Boundary

Detailed field observations indicate that Neoarchean S-type granites were emplaced along and (or) proximal to some terrane (tectonic) boundary zones in the western Superior Province, southeastern Manitoba. These S-type granites are characterized by the presence of at least one diagnostic indicator mineral, such as sillimanite, cordierite, muscovite, garnet, and tourmaline. They are medium- to high-K calc-alkaline, moderately to strongly peraluminous (ANKC >1.1), and contain >1% CIPW normative corundum. Compared with more voluminous, older I-type granitoids in tonalite–trondhjemite–granodiorite suites in the region, the S-type granites occur as relatively small intrusions and have high (SiO2 >72 wt.%) contents with a small silica range (SiO2 = 72.2–81.2 wt.%), but a large range of Zr/Hf (17.1–43.8) and Nb/Ta (0.3–16.0) ratios. These geochemical characteristics suggest that the S-type granites were derived from partial melting of heterogeneous sedimentary rocks deposited as synorogenic flysch that underwent burial and crustal thickening during terrane collision. Although the S-type granites display geochemical variations in individual and between different plutons, their low Sr (<400 ppm) and Yb (<2 ppm) contents and low Sr/Y (<40) and La/Yb (<20) ratios are consistent with a partial melting process that left a granulite-facies residue consisting of plagioclase, pyroxene, and ± garnet. The S-type granites display low zircon saturation temperatures (mostly <800 °C) and low emplacement pressures (<300 MPa), similar to strongly peraluminous leucogranites formed in the Himalayas. Therefore, we propose that the Neoarchean S-type granites in the western Superior Province, whose source rocks were deposited between colliding tectonic blocks between 2720 and 2680 Ma, may serve as a geological marker of some Archean terrane boundary zones.

Preparation of the textured Bi-based oxide tapes by partial melting process

1991 ◽  
Vol 27 (2) ◽  
pp. 1254-1257 ◽  
Author(s):  
J. Kase ◽  
T. Morimoto ◽  
K. Togano ◽  
H. Kumakura ◽  
D.R. Dietderich ◽  
...  
Keyword(s):  
Partial Melting ◽  
Melting Process ◽  
Partial Melting Process

Spectroscopic determination of thermodynamic parameters in partial melting process of RNA

1999 ◽  
pp. 269-270
Author(s):  
Takashi S. Kodama ◽  
Yoshiyuki Tanaka ◽  
Miyo Morita ◽  
Takashi Yura ◽  
Yoshimasa Kyogoku ◽  
...  
Keyword(s):  
Partial Melting ◽  
Thermodynamic Parameters ◽  
Melting Process ◽  
Spectroscopic Determination ◽  
Partial Melting Process

Optimization of Partial Melting Process for Bi-2212 Multi-Filament Wires

2015 ◽  
Vol 44 (3) ◽  
pp. 563-566
Author(s):  
Zhang Shengnan ◽  
Li Chengshan ◽  
Hao Qingbin ◽  
Lu Tianni
Keyword(s):  
Partial Melting ◽  
Melting Process ◽  
Partial Melting Process

High performance fluorine-free MOD YBa2Cu3O7-z film preparation by partial melting process

2012 ◽  
Vol 513 ◽  
pp. 610-614 ◽  
Author(s):  
W.T. Wang ◽  
Y. Zhao ◽  
M.H. Pu ◽  
X.F. Yang ◽  
H. Zhang ◽  
...  
Keyword(s):  
Partial Melting ◽  
High Performance ◽  
Melting Process ◽  
Partial Melting Process ◽  
Film Preparation

Differential partial melting process for temporal variations of Shandong basalts revealed by melt inclusions and their host olivines

2017 ◽  
Vol 49 ◽  
pp. 205-221 ◽  
Author(s):  
Yin-Hui Zhang ◽  
Zhong-Yuan Ren ◽  
Lu-Bing Hong ◽  
Yan Zhang ◽  
Le Zhang ◽  
...  
Keyword(s):  
Partial Melting ◽  
Melt Inclusions ◽  
Melting Process ◽  
Temporal Variations ◽  
Partial Melting Process
Sign in / Sign up

Export Citation Format

Share Document