Journal of Palaeogeography最新文献

{"title":"The Glacial Trifecta: A critical look at pre-Pleistocene glacial interpretations using a Paleoproterozoic example","authors":"David K. Larue","doi":"10.1016/j.jop.2026.100344","DOIUrl":"10.1016/j.jop.2026.100344","url":null,"abstract":"<div><div>Sedimentology and stratigraphy can offer essentially unique insights into key depositional environments and processes, including tidal, wave-driven, deep-water, and fluvial systems. However, the interpretation of pre-Pleistocene glacial deposits is rife with non-unique and questionable interpretations, yet the implications of glacial events for earth history are much more profound.</div><div>Assignments of glacial environments are typically based upon interpretation of what is termed here the Glacial Trifecta, the group of three key interpretations used to recognize glaciogenic deposits: glacial till, presence of striated basement and striated and faceted clasts, and the interpretation of lonestones as dropstones. Briefly stated, uniquely distinguishing pre-Pleistocene tillites from debris flow deposits is extremely difficult or almost impossible. Striated basement and clasts can form by non-glacial mechanisms, including emplacement of olistostromes and other mass movements. Lonestones greatly resembling dropstones can form in non-glacial deep-water slope environments. When any of the features of the Glacial Trifecta appear in a geologic time period previously considered glaciogenic, they reinforce the interpretation that glaciation occurred during that time period, even though the interpreted glaciogenic period may have been defined a century ago prior to better understanding of debris flow and other sediment gravity flow mechanics, sequence stratigraphy, tectonics and sedimentation, and deep-water depositional environments.</div><div>Challenges interpreting glacial deposits in the Paleoproterozoic of the Lake Superior region are presented. Here, prior interpretations of tillite are shown to be likely examples of foliated debris flow deposits. A classification scheme for lonestones is presented, and a number of lonestones that could be misinterpreted as dropstones are described from the non-glacial Cretaceous Pigeon Point Formation and the Miocene San Onofre Breccia. Lonestones in the Paleoproterozoic of the Lake Superior region are interpreted to represent sediment gravity flow deposits.</div><div>Some have argued that the geochemistry of mudstones (the Chemical Index of Alteration, CIA) can be used as an indicator of glacial environments, but counter examples are provided from arid, tectonically active settings. An additional criterion against recognition of glacial environments is the presence of quartz arenites and quartz-rich detritus in purported glacial deposits. Future studies would benefit from focus on more rigorous testing of the Glacial Trifecta. More non-glacial analogues to the Glacial Trifecta, such as those discussed here (the Pigeon Point Formation and the San Onofre Breccia), would help future discussions concerning uncertainty in the interpretation of glacial deposits.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100344"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147398587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paleodrainage analysis of Paleozoic–Mesozoic Bokaro Basin, East India: implications for East Gondwana assembly","authors":"Arpan Dutta ,&nbsp;Santanu Banerjee ,&nbsp;Emilia Le Pera ,&nbsp;Bivin Geo George","doi":"10.1016/j.jop.2026.100341","DOIUrl":"10.1016/j.jop.2026.100341","url":null,"abstract":"<div><div>The north–westerly paleocurrent data, mineral chemistry of rutile, garnet, and tourmaline, besides detrital monazite age populations of primarily 500-400 Ma and 1100-900 Ma populations, tracks the proximal source of the Paleo-Mesozoic sandstones in eastern India to Chhotanagpur Gneissic Complex. The major distal sources supplied material to the Assam Meghalaya Gneissic Complex, besides minor sources in Eastern Ghats, East Antarctica, and southwestern Australia. These Paleo-Mesozoic sediments were deposited in the rifted basins of eastern India following the Cambrian Kuungan orogeny, which saw the last phase of East Gondwana assembly. The basal Talchir Formation of Late Carboniferous age initially accumulated immature glacio-fluvial sediments. Climatic amelioration thereafter enhanced chemical weathering, which led to the maturation of the drainage system from the Permian period onward. Sandstone petrography, rutile, tourmaline, and garnet chemistry imply bulk sediment supply from granitoids and metapelitic rocks. Metamafic rocks supplied occasional sediment during the deposition of Barren Measures and the Early Triassic Panchet Formation. The Cambro-Ordovician monazite ages are absent in the Barren Measures sandstones. Such variation confirms differential sediment input from axial and transverse drainages as a function of paleoclimate and paleotectonism. This study, therefore, establishes that Paleo-Mesozoic sediments of eastern India were transported through the axial and transverse drainage systems from a unified East Gondwana that initiated from the Late Carboniferous and continued till the Early Triassic.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100341"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147398585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in coal-accumulation regularity between northern and southern Yan'an Formation, Ordos Basin: Evidence from geochemistry","authors":"Zi-Long Wang ,&nbsp;De-Lu Li ,&nbsp;Xiao-Chen Zhao ,&nbsp;Ying-Tao Chen ,&nbsp;Jian-Wen Gao ,&nbsp;Wen-Xing Tao ,&nbsp;Lin He ,&nbsp;Hai-Bin Li ,&nbsp;Wen-Qiang Qu ,&nbsp;Xing-Zhe Wang","doi":"10.1016/j.jop.2026.100325","DOIUrl":"10.1016/j.jop.2026.100325","url":null,"abstract":"<div><div>The significant heterogeneity in the development of coal-bearing successions across different regions of sedimentary basins constitutes a critical constraint on both exploration and subsequent exploitation of coal resources. This investigation focuses on the coal deposits of the northern and southern Yan'an Formation within the Ordos Basin. Biomarker identification and geochemical characterization of major, trace, and rare earth elements were conducted using gas chromatography (GC), gas chromatography-mass spectrometry (GC–MS), X-ray fluorescence (XRF), and inductively coupled plasma mass spectrometry (ICP–MS). These analyses aim to reconstruct paleoenvironmental variations during peat accumulation in the northern and southern parts of the Yan'an Formation, Ordos Basin. This investigation systematically examines the coal accumulation evolutionary processes within the Yan'an Formation to unravel the genetic mechanisms governing coal resource distribution patterns in sedimentary basin systems. The results show that: 1) Organic matter in both southern and northern coal deposits predominantly originates from terrestrial higher plants, with subordinate contributions from lower organisms. The southern coals have attained maturity, whereas northern counterparts remain in the immature to low-maturity range. 2) The coal-forming paleoenvironments of the southern and northern Yan'an Formation exhibit fundamental similarities, characterized by warm-humid climatic conditions and reducing freshwater systems. Nevertheless, the southern region exhibited higher paleoproductivity and a lower sedimentation rate, accompanied by evident hydrothermal depositional activity. 3) The southern part predominantly developed the coal seams within warm-humid, anoxic lakeshore swamp systems during the early depositional period of Yan'an Formation. The Yanshanian orogenies provided the geological precondition for early-stage peat accumulation, facilitating thick coal formation. Subsequent waterbody deepening and terminal erosional truncation resulted in stratigraphic absence of coal-bearing sequences of the middle–upper Yan'an Formation in this region. The northern part predominantly developed the middle–upper Yan'an Formation coal deposits under warm-humid climates within suboxic delta plain swamp systems. Stable tectonic subsidence facilitated the formation of thick coal seams characterized by substantial thickness and laterally persistent distribution during the middle–late depositional stage in the northern basin. This study provides critical insights into coal-accumulation regularity in sedimentary basins and enhances coal resource exploration strategies.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100325"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147398590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic geomorphology of the Late Miocene submarine channels in the Southern Taranaki Basin","authors":"Muchamad Ocky Bayu Nugroho ,&nbsp;Piyaphong Chenrai ,&nbsp;Dicky Harishidayat","doi":"10.1016/j.jop.2026.100337","DOIUrl":"10.1016/j.jop.2026.100337","url":null,"abstract":"<div><div>The Late Miocene submarine channel is proven to be a sand-prone deposit in Southern Taranaki, offshore New Zealand. A depositional model of a submarine channel is important to understanding its architecture, geomorphology, and evolution. Identifying sand-prone deposits as potential hydrocarbon reservoirs in submarine channel systems is challenging due to their complex architectures, multi-phase channel histories, and intricate vertical and lateral connectivity. In this study, one high-quality 3D seismic reflection dataset and two exploration wells have been analyzed and interpreted using seismic facies, seismic geomorphology, and a seismic attribute approach (slicing technique), resulting in 18 channels in 4 stratigraphic units during the Late Miocene. In addition, the lithological proportion of sand and shale and its stacking pattern, supported by biostratigraphic data, indicate the presence of a submarine channel in this area. Temporal changes in channel characteristics were observed, including shifts in channel orientation, variations in channel dimensions, and a progressive decrease in sinuosity. These changes reflect the influence of dynamic depositional processes controlled by tectonic activity, seafloor topography, sea-level fluctuations, and sediment supply. Favorable reservoir potential within this submarine channel system is associated with multi-episode cut-and-fill processes, including amalgamated channels and lateral accretion deposits, which collectively contribute to the development of sand-prone facies. The insights from this study contribute to a broader understanding of deepwater channel evolution in tectonically active, sediment-rich settings. The conceptual model developed provides a transferable framework for interpreting similar systems in other continental margin basins worldwide, particularly low-angle slope channel systems within foreland <span>b</span>asin settings. This makes it a valuable analog for analyzing channel systems in data-limited or frontier regions.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100337"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The unique character of the Journal of Palaeogeography","authors":"Yuan Wang","doi":"10.1016/j.jop.2026.100324","DOIUrl":"10.1016/j.jop.2026.100324","url":null,"abstract":"","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100324"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revisiting the old haunt: Paleodictyon and Protopaleodictyon from shallow-marine deposits of the middle–upper Aeronian (Silurian) of the Yangtze Platform, South China","authors":"Xiao-Le Zhang,&nbsp;Yi Wang","doi":"10.1016/j.jop.2026.100345","DOIUrl":"10.1016/j.jop.2026.100345","url":null,"abstract":"<div><div>Graphoglyptids such as <em>Paleodictyon</em> and <em>Protopaleodictyon</em> are typical members of the <em>Nereites</em> ichnofacies, but occasionally they also occur in shallow waters beyond the deep sea. Here, we report <em>Paleodictyon arvense</em>, <em>P. goetzingeri</em> and <em>Protopaleodictyon</em> isp., alongside other trace fossils of the proximal <em>Cruziana</em> ichnofacies from the middle–upper Aeronian, Yangtze Platform, South China. The trace fossils were recognized within intervals deposited in the transitional zone between the lower shoreface and the inner shelf settings, as well as the delta front environment. Compiling examples of shallow-water <em>Paleodictyon</em> and <em>Protopaleodictyon</em> suggest that these trace fossils occurred in a variety of shallow-marine settings, including nearshore, shelf, and slope areas, as well as fluvial and lacustrine environments. Graphoglyptids originated in shallow shelves before migrating into deeper facies during the Early Ordovician. The return of <em>Paleodictyon</em> and <em>Protopaleodictyon</em> in shallow-marine facies after that time generally reflects high sedimentation rates, low bioturbation intensity, low benthic-food delivery and occasional event deposition in relatively quiet local circumstances. The onset of prevailing suboxic, stressed conditions during the Aeronian may have presented a colonizing window for the tracemakers of <em>Paleodictyon</em> and <em>Protopaleodictyon</em> to expand their life habitats in shallow- and marginal-marine settings, prior to higher stages of biotic recovery during the early Silurian.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100345"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147398588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genesis of fenestral fabrics in tidal flat dolomites of Cambrian Stage 4: Evidence from Western Henan, Southern North China Block","authors":"Wen-Yi He ,&nbsp;Yong-An Qi ,&nbsp;Ming-Yue Dai ,&nbsp;Zhen Zhang ,&nbsp;Yao-Gang Du ,&nbsp;Min Wang","doi":"10.1016/j.jop.2025.100321","DOIUrl":"10.1016/j.jop.2025.100321","url":null,"abstract":"<div><div>Abundant fenestral fabrics are widely developed in microcrystalline dolomite, algal clump dolomite, and stromatolitic dolomite of Cambrian Stage 4 on southern North China Block. The paper aims to elucidate the genesis of fenestral fabrics and their relevance to palaeoenvironmental and palaeoclimatic conditions. The fenestral fabrics comprise micron-to millimetric (bird's-eye structures) and centimetric voids, predominantly infilled with calcite and gypsum, with minor occurrences of dolomite. Raman spectral data indicate that organic matter is more concentrated at the edges of fenestral fabrics than in the dolomite matrix or the fabric cores, suggesting that these structures may represent potential accumulation zones for gas bubbles, possibly linked to microbial decomposition. The dolomite sediments consolidated under the exposed, arid, and hot climate conditions, preserving these gas bubbles as micropores. Increased evaporation led to the desiccation and shrinkage of the dolomite sediments, which in turn enlarged the original micropores into larger voids, thereby creating the necessary space for the formation of fenestral fabrics. The calcite and gypsum crystals in fenestral fabrics were interpreted as products of significant Ca²⁺ loss from the dolomite matrix during the transformation of high-magnesium calcite to dolomite, coupled with the Ca²⁺ precipitation from high-salinity brine into fenestral fabrics. This rarely documented fabric type, defined by a dolomite matrix with calcite infill, contributes novel petrographic and geochemical evidence that refines current models of fenestral fabric formation, and supports new interpretations of palaeoenvironmental and palaeoclimatic conditions in ancient evaporitic systems.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100321"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cambrian–Ordovician sedimentary environmental evolution and dolomitization in the Lower Yangtze region of China by sedimentary microfacies and geochemistry","authors":"Jia-Wei He ,&nbsp;Tao Deng ,&nbsp;Li-Juan Wang ,&nbsp;Jun-Peng Guan ,&nbsp;Yong-Biao Yang ,&nbsp;Xiu-Mian Hu","doi":"10.1016/j.jop.2026.100338","DOIUrl":"10.1016/j.jop.2026.100338","url":null,"abstract":"<div><div>The Lower Yangtze region in China hosts extensive Early Paleozoic dolomitic sequences, yet their sedimentary environments and genetic mechanisms remain poorly constrained. This study integrates carbonate microfacies analysis with geochemical data (major, trace, and rare earth elements) from three studied sections (Mufushan, Lunshan, Tangshan) and two drill cores (Sure 1 and Sure 2) to elucidate the depositional evolution and dolomitization of the Cambrian–Ordovician Guanyintai, Lunshan, and Honghuayuan formations. Totally 15 types of carbonate microfacies were identified, revealing a transition from supratidal sabkha (e.g., powder-crystal dolostone with geopetal structures) to shallow shoal environments (e.g., dolomitized oolitic grainstone). Geochemical signatures (MgO–CaO covariation, Sr depletion, and REY patterns) indicate that the Guanyintai Formation dolostone formed via reflux penetration of Mg²⁺ enriched brines in shallow burial settings, while the Lunshan Formation experienced superimposed burial and hydrothermal dolomitization, evidenced by saddle dolomite textures and positive δEu anomalies. Contrarily, the Honghuayuan Formation limestones exhibit significant terrigenous input (elevated Al₂O₃, Zr, and SiO₂). This study establishes a dual-phase genetic model for Cambrian–Ordovician dolostone in Lower Yangtze region, emphasizing the interplay of evaporative reflux and hydrothermal activity. These findings provide critical insights for predicting dolostone reservoir distribution and optimizing hydrocarbon exploration in analogous marine carbonate systems.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100338"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New species of Amphicyon (Mammalia, Carnivora) from the Middle Miocene strata of Xin'an, Henan, China","authors":"Arya Farjand ,&nbsp;Qi-Gao Jiangzuo ,&nbsp;Zhao-Qun Zhang ,&nbsp;Paul Rummy ,&nbsp;Mehdi Khoshnamvand ,&nbsp;Shun-Dong Bi","doi":"10.1016/j.jop.2025.100319","DOIUrl":"10.1016/j.jop.2025.100319","url":null,"abstract":"<div><div>The Amphicyonidae are an extinct group of large carnivorans that appeared during the Late Eocene in North America but thrived during the Miocene epoch in Eurasia. In China, <em>Amphicyon</em> has been recognized with three species; however, all are identified from limited material. A partial cranium discovered from the late Middle Miocene strata of Xin'an, Henan, central China, significantly improves our understanding of <em>Amphicyon</em> in China, Europe, and North America. It suggests the uniquity of this <em>Amphicyon</em> species, namely <em>Amphicyon zhinu</em> sp. nov., which is distinguishably smaller in size and differs in the morphology of its maxillary teeth. Therefore, the presence of these four different species of <em>Amphicyon</em> in North China during the Middle Miocene Climate Optimum verifies the high diversity and suggests an evolutionary divergence.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100319"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Control of deep-water sedimentation on rift margin by non-coaxial fault linkage system: a case study from the steep slope of the Dongying Depression, Bohai Bay Basin, China","authors":"Rong-Heng Tian ,&nbsp;Ben-Zhong Xian ,&nbsp;Qian-Ran Wu ,&nbsp;Peng Chen ,&nbsp;Naveed Ur Rahman ,&nbsp;Lin Zhao ,&nbsp;Peng-Yu Wang ,&nbsp;Wen-Miao Zhang","doi":"10.1016/j.jop.2025.100318","DOIUrl":"10.1016/j.jop.2025.100318","url":null,"abstract":"<div><div>Understanding the evolution of the segmented synsedimentary fault linkage, which controls the accommodation development, sediment infill, and stratigraphic architecture, is essential for reconstructing rift histories and exploring natural resources. This study investigates the tectono-sedimentary processes in the steep slope of the Dongying Depression within the Bohai Bay Basin rift system, eastern China by utilizing three-dimensional seismic and drilling data. A classification scheme for non-coaxial extensional fault linkage styles is proposed, categorizing them into two types—partial linkage and through-going hard linkage—with eight subtypes based on geometric architectures, evolutionary stages, and segment-scale activity. Statistical analysis of the length and separation distance of the main border fault (the Chennan Fault) reveals that non-coaxial linkage systems are pervasive along the northern rift margin of the Dongying Depression. These systems controlled the development of its irregular zigzag geometry. Furthermore, analysis of non-coaxial convergent fault linkage processes provides the most plausible explanation for the initial morphology of the large paleo-gullies observed on the steep slope. Seismic-geomorphologic mapping and borehole dataset allow us to constrain the spatial and architectural variability of depositional systems along the rift margin. The results demonstrate that non-coaxial fault linkage processes control deep-water depositional types: basinal fans dominate during partial linkage phases, while nearshore subaqueous fans develop under through-going linkage conditions. Non-coaxial fault segment activity influences sediment input directions: uniform fault activity promotes longitudinal transport systems, whereas heterogeneous activity controls oblique delivery along dominant fault segments. This study enhances the understanding of non-coaxial fault systems and their sedimentary responses, providing a reliable basis for hydrocarbon exploration in the steep slopes of lacustrine rift basins.</div></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"15 2","pages":"Article 100318"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}