Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia
The volcanic rocks in Semporna Peninsula, Sabah, Malaysia forms parts of the Miocene subjected slab during the Miocene-Pliocene orogeny. This study presents new petrographic and geochemical data of volcanic rocks in Semporna area. The volcanic rocks range in composition from basaltic andesite, a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2021
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| Online Access: | http://journalarticle.ukm.my/16387/ http://journalarticle.ukm.my/16387/1/2.pdf |
| _version_ | 1848814039115759616 |
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| author | Elvaene James, Azman Abdul Ghani, Akinola, Oluwatoyin O. Junaidi Asis, |
| author_facet | Elvaene James, Azman Abdul Ghani, Akinola, Oluwatoyin O. Junaidi Asis, |
| author_sort | Elvaene James, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | The volcanic rocks in Semporna Peninsula, Sabah, Malaysia forms parts of the Miocene subjected slab during
the Miocene-Pliocene orogeny. This study presents new petrographic and geochemical data of volcanic rocks in
Semporna area. The volcanic rocks range in composition from basaltic andesite, andesite, dacite to rhyolite, with
most of the volcanic shows calc-alkaline affinity with a minor tholeiitic feature. The trace elements shows enrichment
in large-ion lithophile elements (LILE) and light rare earth elements (LREE) suggesting that the volcanic rocks have
similar geochemical patterns and might come from similar magma source. The petrochemical data suggests that
volcanic rocks of Semporna shows characteristic of subduction zone (negative Nb, Ta, and Ti). Decreasing magnitude
of Europium anomalies from intermediate to acid lavas suggests an important role of plagioclase in the fractional
crystallization. Negative Ce anomaly in part of Semporna volcanic rocks suggest that those volcanic rocks may related
with emergence of oxygenated deep-sea environment. Tectonic diagrams showed that the Semporna volcanic rocks
were formed in an island arc setting. |
| first_indexed | 2025-11-15T00:27:44Z |
| format | Article |
| id | oai:generic.eprints.org:16387 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:27:44Z |
| publishDate | 2021 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:163872021-04-13T02:54:17Z http://journalarticle.ukm.my/16387/ Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia Elvaene James, Azman Abdul Ghani, Akinola, Oluwatoyin O. Junaidi Asis, The volcanic rocks in Semporna Peninsula, Sabah, Malaysia forms parts of the Miocene subjected slab during the Miocene-Pliocene orogeny. This study presents new petrographic and geochemical data of volcanic rocks in Semporna area. The volcanic rocks range in composition from basaltic andesite, andesite, dacite to rhyolite, with most of the volcanic shows calc-alkaline affinity with a minor tholeiitic feature. The trace elements shows enrichment in large-ion lithophile elements (LILE) and light rare earth elements (LREE) suggesting that the volcanic rocks have similar geochemical patterns and might come from similar magma source. The petrochemical data suggests that volcanic rocks of Semporna shows characteristic of subduction zone (negative Nb, Ta, and Ti). Decreasing magnitude of Europium anomalies from intermediate to acid lavas suggests an important role of plagioclase in the fractional crystallization. Negative Ce anomaly in part of Semporna volcanic rocks suggest that those volcanic rocks may related with emergence of oxygenated deep-sea environment. Tectonic diagrams showed that the Semporna volcanic rocks were formed in an island arc setting. Penerbit Universiti Kebangsaan Malaysia 2021-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/16387/1/2.pdf Elvaene James, and Azman Abdul Ghani, and Akinola, Oluwatoyin O. and Junaidi Asis, (2021) Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia. Sains Malaysiana, 50 (1). pp. 9-21. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid50bil1_2021/KandunganJilid50Bil1_2021.html |
| spellingShingle | Elvaene James, Azman Abdul Ghani, Akinola, Oluwatoyin O. Junaidi Asis, Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title | Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title_full | Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title_fullStr | Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title_full_unstemmed | Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title_short | Petrology and geochemical features of Semporna volcanic rocks, South-East Sabah, Malaysia |
| title_sort | petrology and geochemical features of semporna volcanic rocks, south-east sabah, malaysia |
| url | http://journalarticle.ukm.my/16387/ http://journalarticle.ukm.my/16387/ http://journalarticle.ukm.my/16387/1/2.pdf |