Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia
The Crocker Formation, Late Eocene to Middle Miocene in age, was deposited in a deep-marine environment by a turbidity current. Most of the facies identified in the field are related to the sedimentary bed-form structures belonging to Bouma sequences. These prominently include unit divisions such as...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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Geological Society of Malaysia.
2021
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| Online Access: | https://eprints.ums.edu.my/id/eprint/37293/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/37293/2/FULL%20TEXT.pdf |
| _version_ | 1796911892249182208 |
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| author | Muhd Nur Ismail Abdul Rahman Hafeez Jeofry Muhammad Abdullah Ismail Abd Rahim Sanudin Hj.Tahir |
| author_facet | Muhd Nur Ismail Abdul Rahman Hafeez Jeofry Muhammad Abdullah Ismail Abd Rahim Sanudin Hj.Tahir |
| author_sort | Muhd Nur Ismail Abdul Rahman |
| collection | UMS |
| description | The Crocker Formation, Late Eocene to Middle Miocene in age, was deposited in a deep-marine environment by a turbidity current. Most of the facies identified in the field are related to the sedimentary bed-form structures belonging to Bouma sequences. These prominently include unit divisions such as Ta referring to grading sand, Tb for parallel laminae, Tc for cross laminae, Td for mud laminae, and Te referring to hemipelagic mud. Five facies have adequately been identified using Bouma sequence implications, namely Facies 1 (F1: Ta-Tb layers), Facies 2 (F2: Ta-Te layers), Facies 3 (F3: Tb-Te layers), Facies 4 (F4: Tb / Tc-Te layers), and Facies 5 (F5: Td-Te layers). Based on the Crocker Formation facies analysis, three distinct groups of facies associations were recognised: Deep-Marine Channel-Lobe Association (Type A1), Deep-Marine Channel-Levee Association (Type A2), and Distal Lobe Association. These facies associations precisely revealed that the Crocker Formation's depositional environments were likely deposited in the middle-fan with associated outer-fan settings. |
| first_indexed | 2024-03-06T03:25:30Z |
| format | Article |
| id | ums.eprints-37293 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:25:30Z |
| publishDate | 2021 |
| publisher | Geological Society of Malaysia. |
| record_format | dspace |
| spelling | ums.eprints-372932023-09-26T01:48:43Z https://eprints.ums.edu.my/id/eprint/37293/ Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia Muhd Nur Ismail Abdul Rahman Hafeez Jeofry Muhammad Abdullah Ismail Abd Rahim Sanudin Hj.Tahir QE420-499 Petrology TN799.5-948 Nonmetallic minerals The Crocker Formation, Late Eocene to Middle Miocene in age, was deposited in a deep-marine environment by a turbidity current. Most of the facies identified in the field are related to the sedimentary bed-form structures belonging to Bouma sequences. These prominently include unit divisions such as Ta referring to grading sand, Tb for parallel laminae, Tc for cross laminae, Td for mud laminae, and Te referring to hemipelagic mud. Five facies have adequately been identified using Bouma sequence implications, namely Facies 1 (F1: Ta-Tb layers), Facies 2 (F2: Ta-Te layers), Facies 3 (F3: Tb-Te layers), Facies 4 (F4: Tb / Tc-Te layers), and Facies 5 (F5: Td-Te layers). Based on the Crocker Formation facies analysis, three distinct groups of facies associations were recognised: Deep-Marine Channel-Lobe Association (Type A1), Deep-Marine Channel-Levee Association (Type A2), and Distal Lobe Association. These facies associations precisely revealed that the Crocker Formation's depositional environments were likely deposited in the middle-fan with associated outer-fan settings. Geological Society of Malaysia. 2021-11 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/37293/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/37293/2/FULL%20TEXT.pdf Muhd Nur Ismail Abdul Rahman and Hafeez Jeofry and Muhammad Abdullah and Ismail Abd Rahim and Sanudin Hj.Tahir (2021) Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia. Bulletin of the Geological Society of Malaysia, 72. pp. 1-16. ISSN 01266187 https://doi.org/10.7186/bgsm72202105 |
| spellingShingle | QE420-499 Petrology TN799.5-948 Nonmetallic minerals Muhd Nur Ismail Abdul Rahman Hafeez Jeofry Muhammad Abdullah Ismail Abd Rahim Sanudin Hj.Tahir Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title | Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title_full | Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title_fullStr | Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title_full_unstemmed | Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title_short | Facies analysis of the Late Eocene deep-marine middle- to outer-fan sequence of the Crocker Formation in Tenom District, Sabah, Malaysia |
| title_sort | facies analysis of the late eocene deep marine middle to outer fan sequence of the crocker formation in tenom district sabah malaysia |
| topic | QE420-499 Petrology TN799.5-948 Nonmetallic minerals |
| url | https://eprints.ums.edu.my/id/eprint/37293/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/37293/2/FULL%20TEXT.pdf |
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