Sedimentary sequence in the subsurface of the Pekan coastal plain, Pahang

702001-100706-504-B
Author : Che Aziz Ali
Publication : Bulletin of the Geological Society of Malaysia
Page : 293-300
Volume Number : 45
Year : 2002
DOI : https://doi.org/10.7186/bgsm45200245

Bulletin of the Geological Society of Malaysia, Volume 45, May 2002, pp. 293 – 300

 

Sedimentary sequence in the subsurface of the Pekan coastal plain, Pahang

Che Aziz Ali

Program Geologi, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor

 

Abstract: The Pekan coastal plain in which the Pahang river delta is located is made up of a thick sequence of unconsolidated sedimentary sequence of an unnamed formation. Drilling programmes carried out in the area show that the unconsolidated sequence was deposited during two major periods of sedimentation that took place in two different setting. The lower sequence which has been interpreted to have been deposited during the Pleistocene period consists of entirely continental sediment. The continental sequence can be divided into several packages according to their depositional trends and the boundary of each package is marked by an apparent depositional break. The sea-level rise during the early Holocene period have resulted in deposition of a series of marine/marine-influenced sediments at the top of the sequence.

https://doi.org/10.7186/bgsm45200245

Abstrak: Dataran pantai Pekan yang di dalamnya terletak delta Sungai Pahang dibentuk oleh satu jujukan sedimen takterkonsolidasi yang tebal yang setakat ini tidak begitu jelas nama formasinya. Program penggerudian yang dilakukan di kawasan tersebut menunjukkan bahawa sedimen takterkonsolidasi tersebut telah dimendapkan pada period yang berlainan dan berlaku di dalam setting yang berbeza. Jujukan bawah yang telah ditafsirkan·telah dimendapkan semasa Pleistosen terdiri daripada sedimen daratan. Jujukan sedimen daratan tersebut boleh dibahagikan kepada dua pakej pemendapan yang setiap satunya di pisahkan daripada yang lain oleh rumpang pemendapan Peningkatan paras laut semasa awal Holosen telah mengakibatkan pemendapan satu siri sedimen lautan/dipengaruhi lautan di bahagian atas jujukan.


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