Bulletin of the Geological Society of Malaysia, Volume 26, April 1990, pp. 47 – 53
Geological Survey of Malaysia, P.O. Box 1015, 30820 Ipoh, Perak
Abstract: Quaternary geological mapping in Seberang Prai, Penang Island and Kuala Kurau was started in February 1983 and completed in September 1988. It covers the lowlands and coastal areas of the Topographic Map Sheets 28, 39 and southern part of Sheet 16. A total of 12 deep boreholes and 288 shallow holes were drilled in the course of the investigation.
Generally the stratigraphy of the area is divided into Simpang Formation, Gula Formation and Beruas Formation. The lithology of the Simpang Formation is made up of gravel, sand, clay and locally silt and peat. It is accumulated or deposited in terrestrial environment by fluvial processes during the Pleistocene. The Gula Formation is subdivided into five members viz. the Bagan Datoh, Teluk Intan, Port Weld, Parit Buntar and Matang Gelugor. Generally the lithology consists of silt, clay, sand, sometimes gravel and peat and often contain shells. The environment of deposition is interpreted as shallow marine, estuarine and littoral and Holocene in age. The Beruas Formation constitutes sand, gravel, clay, silt and occasionally peat accumulated or deposited in terrestrial environment by fluvial processes during the Holocene.
Abstrak: Pemetaan geologi Kuaterner kawasan Seberang Prai, Pulau Pinang dan Kuala Kurau telah dimulakan pada Februari 1983. Ia meliputi kawasan pantai dan tanah-rendah peta topografi syit 28, 39 dan sebahagian syit 16. Di dalam penyiasatan ini sebanyak 12 lubang penggerudian dalam dan 288 penggerudian cetek telah dibuat.
Secara am stratigrafi kawasan kajian terbahagi kepada tiga unit lithostratigrafi iaitu Formasi Simpang, Formasi Gula dan Formasi Beruas. Lithologi Formasi Simpang adalah terdiri dari kelikir, pasir, tanah liat dan kadangkala lodak dan gambut. Ia telah diendapkan dipersekitaran terestrial oleh proses fluvial di masa Pleistosen. Formasi Gula pula boleh dibahagikan kepada beberapa ahli iaitu Ahli Bagan Datoh, Ahli Teluk Intan, Ahli Port Weld, Ahli Parit Buntar dan Ahli Matang Gelugor. Lithologinya terdiri dari lodak, tanah liat, pasir, kelikir dan juga gambut dan biasanya mengandungi fosil laut. Formasi Gula ditafsirkan telah diendapkan dipersekitaran litoral, muara sungai dan laut cetek dan ia berusia Holosen. Formasi Beruas terdiri dari pasir, kelikir, tanah liat, lodak dan gambut telah diendapkan oleh proses sungai dipersekitaran terestrial dan berusia Holosen.
https://doi.org/10.7186/bgsm26199005
