TY - JOUR N2 - Sedimentological features of the onshore Paleogene-Neogene Lawin Basin are of importance in better understanding the basin evolution and geodynamics. The N-S trending Lawin Basin, which is situated within the Western Belt of Peninsular Malaysia, is an extensional basin that formed during the sinistral movement of the Bok Bak Fault zone. This study evaluates the palaeodepositional environment, reveals the provenance, and interprets the transport dynamics of the mini-basin by integrating facies, petrographic, and grain size analyses. The basin lithologies can be broadly divided into conglomerate and sandy facies, with the former consisting of clast-supported conglomerate, matrix-supported conglomerate, cross-stratified pebble conglomerate, and bedded pebbly conglomerate, whereas the latter comprises massive pebbly sandstone, horizontally bedded sandstone, planar cross-bedded sandstone, and ripple laminated sandstone. The lithologies can be grouped into three main facies associations, including massive conglomerate, stratified conglomerate, and fluvial sandstone deposits, which reflect alluvial fan (debris/gravity flow deposits), braided gravel bar, and channel bar elements, respectively. Petrographic data indicate that the conglomerates are clast- and matrix-supported and were derived from a proximal source. The QFL range of detrital framework grains reveals that sandstones are composed of quartz (43â??80 vol), feldspar (9â??54 vol), and lithic fragments (2â??16 vol). The sandstones are coarse-grained, poorly-sorted, and sub-rounded to sub-angular in texture. They are arkose, sublitharenite, and lithic arkose in composition. QtFL/QmFLt ternary diagrams show that the sandstones are primarily derived from a provenance area comprising continental block material, including uplifted basement rocks and transitional continental deposits. This study proposes that the sandstones had a nearby granitic source (Bintang) and a debris source derived from recycled sedimentary rocks (the Baling Group sediments). Grain size parameters ranges (mean, â??2.37 to 0.74 Φ; sorting, 1.22 to 2.07 Φ; skewness â??0.21 to 0.91 Φ, kurtosis, 0.66 to 1.98 Φ, and average mean-sorting index of â??0.24) are consistent with immature to sub-mature sedimentation deposited within a high-energy fluvial environment. © 2023 The Author(s) Y1 - 2023/// TI - Facies analysis, petrography and textural characteristics of the onshore Paleogene-Neogene Lawin Basin, Perak, Peninsular Malaysia: Insights into palaeodepositional environment and provenance KW - depositional environment; facies analysis; lithology; Neogene; Paleogene; petrography; provenance; sandstone; sedimentology KW - Malaysia; Perak; West Malaysia; West Malaysia UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85153796430&doi=10.1016%2fj.jaesx.2023.100150&partnerID=40&md5=6920a05ce64a8adecbd3fa973c58ea66 N1 - cited By 1 A1 - Kasim, S.A. A1 - Suhaili Ismail, M. A1 - Ahmed, N. A1 - Rashid, A. ID - scholars18521 JF - Journal of Asian Earth Sciences: X AV - none VL - 9 ER -