scholarly journals Determination of volatiles in volcanic rocks and minerals with a Directly Coupled Evolved Gas Analyzing System (DEGAS) -Part I: Interpretation of degassing profiles (DEGAS-profiles) of minerals and rocks on the basis of melting experiments

2009 ◽  
Vol 48 (4-5) ◽  
Author(s):  
K. Heide ◽  
C. M. Schmidt
Keyword(s):  
Volcanic Rocks ◽  
Evolved Gas ◽  
Melting Experiments

Quantitative Determination of some Carbonate Minerals in Greenschist Facies Meta-volcanic Rocks

1972 ◽  
Vol 9 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Calvert C. Bristol
Keyword(s):  
Standard Deviation ◽  
Quantitative Determination ◽  
Volcanic Rocks ◽  
Internal Standard ◽  
Greenschist Facies ◽  
Carbonate Mineral ◽  
Mineral Contents ◽  
X Ray ◽  
Fine Grained

X-ray powder diffraction methods, successful in quantitative determination of silicate minerals in fine-grained rocks, have been applied to the determination of calcite, dolomite, and magnesite in greenschist facies meta-volcanic rocks. Internal standard graphs employing two standards (NaCl and Mo) have been determined.Carbonate mineral modes (calcite and dolomite) for 6 greenschist facies meta-volcanic rocks obtained by the X-ray powder method have been compared to normative carbonate mineral contents calculated for the same rocks. This comparison showed a maximum variation of 7.7 wt.% between the X-ray modes and the normative carbonate mineral contents of the rocks. Maximum standard deviation for the X-ray modes of these rocks was equivalent to 4.4 wt.%.

Determination of the 230Th232Th in recent volcanic rocks by mass spectrometry

1988 ◽  
Vol 70 (1-2) ◽  
pp. 125
Author(s):  
F. Chabaux ◽  
D. Ben Othman ◽  
G. Manhes ◽  
C.J. Allegre
Keyword(s):  
Mass Spectrometry ◽  
Volcanic Rocks

Accurate and efficient determination of boron content in volcanic rocks by neutron induced prompt gamma-ray analysis

1999 ◽  
Vol 239 (3) ◽  
pp. 613-617 ◽  
Author(s):  
T. Sano ◽  
T. Fukuoka ◽  
T. Hasenaka ◽  
C. Yonezawa ◽  
H. Matsue ◽  
...  
Keyword(s):  
Boron Content ◽  
Gamma Ray ◽  
Volcanic Rocks ◽  
Prompt Gamma

scholarly journals K-Ar age determination of Late Pleistocene volcanic rocks.

1984 ◽  
Vol 90 (12) ◽  
pp. 899-909 ◽  
Author(s):  
TETSUMARU ITAYA ◽  
KEISUKE NAGAO ◽  
HIROTSUGU NISHIDO ◽  
KOREICHI OGATA
Keyword(s):  
Late Pleistocene ◽  
Volcanic Rocks ◽  
Age Determination

scholarly journals Determination of Boron Content in Volcanic Rocks by Using Neutron-induced Prompt .GAMMA.-Ray. Correction of Count Rate Fluctuation Using Silicon Internal Standard.

RADIOISOTOPES ◽  
1998 ◽  
Vol 47 (10) ◽  
pp. 735-744 ◽  
Author(s):  
Takashi SANO ◽  
Takaaki FUKUOKA ◽  
Toshiaki HASENAKA ◽  
Chushiro YONEZAWA ◽  
Hideaki MATSUE ◽  
...  
Keyword(s):  
Count Rate ◽  
Boron Content ◽  
Gamma Ray ◽  
Volcanic Rocks ◽  
Internal Standard ◽  
Prompt Gamma ◽  
Rate Fluctuation
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