Abstract
The X-ray fluorescence and ICP methods were used to analyze 60 outcrop samples of black shale, of which 15 were collected from Belait, 15 from the Setap Shale, 15 from Temburong, and 15 from the Trusmadi formations. The average compositions of the shales from the study area are 64.62%, 63.95%, 62.32%, 63.84% SiO2, 1.84%, 2.14%, 2.04%, 1.99% MgO, 2.55%, 3.12%, 2.89%, 2.72% K2O, 0.32%, 0.30%, 0.32%, 0.53% CaO, 5.86%, 6.06%, 7.14%, 6.60% Fe2O3, 207 × 10-6, 180 × 10-6, 213 × 10-6, 200 × 10-6 Rb, and 56 × 10-6, 49 × 10-6, 50 × 10-6, 32 × 10-6 Sr for the Setap Shale, Temburong, Belait and Trusmadi samples, respectively. The high Rb/Sr ratios of 3.8, 3.7, 4.2, and 6.1 are attributed to the lowest contents of Sr due to reducing conditions prevailing. The high Rb/K ratio suggests either brackish marine or rapid deposition that prevented equilibrium between Rb and K in the shales and marine waters.
| Original language | English |
|---|---|
| Pages (from-to) | 28-35 |
| Number of pages | 8 |
| Journal | Chinese Journal of Geochemistry |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Mar 2008 |
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Keywords
- Brackish water
- Chemical composition
- Tertiary black shale
- West Sabah
- XRF
ASJC Scopus subject areas
- Geology
Cite this
Chemical composition of the Tertiary black shales of West Sabah, East Malaysia. / Burgan, Amer M.; Ali, Che Aziz; Tahir, Sanudin Hj.
In: Chinese Journal of Geochemistry, Vol. 27, No. 1, 03.2008, p. 28-35.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Chemical composition of the Tertiary black shales of West Sabah, East Malaysia
AU - Burgan, Amer M.
AU - Ali, Che Aziz
AU - Tahir, Sanudin Hj
PY - 2008/3
Y1 - 2008/3
N2 - The X-ray fluorescence and ICP methods were used to analyze 60 outcrop samples of black shale, of which 15 were collected from Belait, 15 from the Setap Shale, 15 from Temburong, and 15 from the Trusmadi formations. The average compositions of the shales from the study area are 64.62%, 63.95%, 62.32%, 63.84% SiO2, 1.84%, 2.14%, 2.04%, 1.99% MgO, 2.55%, 3.12%, 2.89%, 2.72% K2O, 0.32%, 0.30%, 0.32%, 0.53% CaO, 5.86%, 6.06%, 7.14%, 6.60% Fe2O3, 207 × 10-6, 180 × 10-6, 213 × 10-6, 200 × 10-6 Rb, and 56 × 10-6, 49 × 10-6, 50 × 10-6, 32 × 10-6 Sr for the Setap Shale, Temburong, Belait and Trusmadi samples, respectively. The high Rb/Sr ratios of 3.8, 3.7, 4.2, and 6.1 are attributed to the lowest contents of Sr due to reducing conditions prevailing. The high Rb/K ratio suggests either brackish marine or rapid deposition that prevented equilibrium between Rb and K in the shales and marine waters.
AB - The X-ray fluorescence and ICP methods were used to analyze 60 outcrop samples of black shale, of which 15 were collected from Belait, 15 from the Setap Shale, 15 from Temburong, and 15 from the Trusmadi formations. The average compositions of the shales from the study area are 64.62%, 63.95%, 62.32%, 63.84% SiO2, 1.84%, 2.14%, 2.04%, 1.99% MgO, 2.55%, 3.12%, 2.89%, 2.72% K2O, 0.32%, 0.30%, 0.32%, 0.53% CaO, 5.86%, 6.06%, 7.14%, 6.60% Fe2O3, 207 × 10-6, 180 × 10-6, 213 × 10-6, 200 × 10-6 Rb, and 56 × 10-6, 49 × 10-6, 50 × 10-6, 32 × 10-6 Sr for the Setap Shale, Temburong, Belait and Trusmadi samples, respectively. The high Rb/Sr ratios of 3.8, 3.7, 4.2, and 6.1 are attributed to the lowest contents of Sr due to reducing conditions prevailing. The high Rb/K ratio suggests either brackish marine or rapid deposition that prevented equilibrium between Rb and K in the shales and marine waters.
KW - Brackish water
KW - Chemical composition
KW - Tertiary black shale
KW - West Sabah
KW - XRF
UR - http://www.scopus.com/inward/record.url?scp=43049137732&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=43049137732&partnerID=8YFLogxK
U2 - 10.1007/s11631-008-0028-z
DO - 10.1007/s11631-008-0028-z
M3 - Article
AN - SCOPUS:43049137732
VL - 27
SP - 28
EP - 35
JO - Acta Geochimica
JF - Acta Geochimica
SN - 2096-0956
IS - 1
ER -