Sedimentary features and ages of fluvial terraces and their implications for geomorphic evolution of the Taomi River catchment: A case study in the Puli Basin, central Taiwan

Tseng, Chia-Han; Wenske, Dirk; Böse, Margot; Reimann, Tony; Lüthgens, Christopher; Frechen, Manfred

doi:10.1016/j.jseaes.2012.11.028

Cited by 6 publications

(9 citation statements)

References 38 publications

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“…Previous studies applying OSL dating techniques in Taiwan revealed that the luminescence properties of quartz are highly variable, with a variety of factors in some cases limiting the suitability for dating purposes. Major limitations are caused by overall dim luminescence signals, significant feldspar contamination and the presence of unfavourable signal components (Dörschner et al 2012;Tseng et al 2013Tseng et al , 2016. However, these studies also showed that despite these issues, reasonable results could be achieved using appropriate measurement protocols and careful data evaluation techniques.…”

Section: Numerical Datingmentioning

confidence: 97%

The Holocene paleo-environmental history of the Gangkou River estuary, Hengchun Peninsula, Taiwan

Lüthgens¹,

Ho²,

Clemenz³

et al. 2018

Terr. Atmos. Ocean. Sci.

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The Taiwan coastal areas are facing predicted sea-level rise effects in the global climate change context. Better understanding of the mechanisms and forcing factors driving the geomorphological evolution of Taiwan's coastline is essential. We highlight the potential of small river estuaries as archives of coastal evolution and provide a paleo-environmental reconstruction of the Gangkou River estuary based on results from a combined methodological approach using geomorphological, sedimentological, and geochronological analyses. A consistent chronology was established by combining Optically Stimulated Luminescence (OSL) dating, as well as radiocarbon dating techniques. A distinct beach-rock layer allowed firm correlation of six investigated coastal profiles. Eustatic sea level change was identified as the primary coastal and estuarine landscape development forcing factor in the study area. Tectonic forcing could also be detected from the investigated sites, but has to be regarded as a subordinate secondary forcing factor. The Gangkou River estuary developed in the early Holocene at about 8 ka and was fully developed by the time the Holocene sea-level maximum was reached. With the sea-level dropping until modern times, estuarine zone relocation and a transition to terrestrial processes was initiated, leading to development of the current coastal dune system since about 2.5 ka. Major dune building phases correlate with the climate change associated with the Little Ice Age (LIA) event and stabilised towards recent times, which is in accordance with regional and over-regional coastal Aeolian records in Taiwan.

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Section: Numerical Datingmentioning

confidence: 97%

The Holocene paleo-environmental history of the Gangkou River estuary, Hengchun Peninsula, Taiwan

Lüthgens¹,

Ho²,

Clemenz³

et al. 2018

Terr. Atmos. Ocean. Sci.

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“…In recent decades there have been more detailed studies on the origin and development of the tablelands, e.g. studies on tectonism at the Dadu Tableland and Pakua Tableland (Delcaillau, 2001;Shih and Yang, 1985), the soil development and relative chronology at the Dadu Tableland (Tsai et al, 2010) and Pakua Tableland (Tsai et al, 2006), and the morphology and sediment chronology of the Puli Tableland (Tseng et al, 2013). The depositional environments and biostratigraphy of the sedimentary sequence as well as the morphology corresponding to active tectonism were studied in the Linkou Tableland (Horng, 2014;Teng et al, 2001) as well as the relative and absolute chronology, erosion, and tectonism of smaller terraces in other regions (Chen et al, 2004;Ota et al, 2009Ota et al, , 2002Ota et al, , 2005Chen et al, 2003).…”

Section: The Tablelands In Taiwanmentioning

confidence: 99%

“…The majority of these studies follow the interpretations that, according to the continuous tectonic uplift since the Pliocene, the age of the tablelands' sedimentary units ranges from the Pliocene to early Pleistocene (Chang, 1953). Only a few studies included or focused on the late Quaternary sedimentation and surface morphology of the tablelands (Ota et al, 2006;Tseng et al, 2013;Horng, 2014;Chang et al, 1998;Teng et al, 2001;Siame et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Late Quaternary landform evolution and sedimentary successions in the Miaoli Tableland, northwestern Taiwan

Liu

Hebenstreit

Böse

2022

E&G Quaternary Sci. J.

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Abstract. Elevated Quaternary sedimentary complexes in the western foreland of the central mountain ranges of Taiwan are called tablelands. Their mostly flat surfaces are deeply incised by fluvial processes. The landforms and the fluvial systems in the Miaoli Tableland are investigated by high-resolution terrain analyses based on different datasets. Sediments are described in 51 outcrops and characterized by grain size composition. The outcrops revealed complete or incomplete sequences of the general scheme from bottom to top: sandy tidal–coastal units overlain by gravel- and cobble-rich fluvial deposits always with a fine-grained silt-rich top cover layer influenced by aeolian deposits. All layers are unconsolidated sediments. Three subtypes of this sequence were identified, with respect to the occurrence of the fluvial deposits. The relation of tectonic and erosional processes including the rework of gravels is discussed. The results reveal a tableland surface much more disaggregated than previously mapped, suggesting that individual tableland segments represent remnants of an inferred palaeotopography. The tableland surfaces have been separated into Sedimentary Highlands (SH-I and SH-II) and Sedimentary Terraces (ST) by geometrical properties. The Alluvial and Coastal Plains (AL) represent broad valley bottoms (“box-shaped valleys”) in the dendritic drainage systems below 150 m and the coastal plains. The landforms and predominantly the sediment sequences are discussed in the context of the existing stratigraphical schemes of the Toukoshan Formation and the so far rarely used Lungkang Formation. The latter is recommended as the stratigraphical term for the refined subdivision of the uppermost part of late Quaternary sediments in the Miaoli Tableland.

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“…Variations in the yield of these coarse-grained sediments have been attributed to climatic changes (Huang et al, 1997;Tseng et al, 2013), that is, glacial and periglacial conditions in the high mountain ranges (Klose, 2006;Hebenstreit et al, 2011) or variable mass-wasting activity in the mountain catchments (Hsieh and Chyi, 2010). Tablelands are also present in an intramountainous basin (Puli Tableland), where they are composed of gravels and cobbles (Teng, 1979;Teng, 1996;Tseng et al, 2013Tseng et al, , 2016. The sedimentary successions can reach more than 1000 m in thickness in the western forelands.…”

Section: The Taiwanese Tablelandsmentioning

confidence: 99%

Late Quaternary formation of the Miaoli Tableland in northwest Taiwan, an interplay of tectonic uplift and fluvial processes dated by OSL

et al. 2022

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The “tablelands” in Taiwan are sedimentary terraces occurring in the foreland basin west of the Neogene mountain ranges. The Miaoli Tableland consists of elevated Late Quaternary sedimentary successions, representing a change from tidal to coastal and fluvial to eolian depositional environments. The present-day morphology is a result of combined processes, including differential tectonic uplift, ongoing fluvial aggradation, and incision. Selected deposits in 10 outcrops were sampled and studied by optical dating. The deposition of fluvial sediments started after the last interglacial (<100 ka) in the southeast of the tablelands. Uplift and sea-level lowering caused a base-level fall, resulting in a stepwise redeposition of the fluvial sediments. Additionally, enhanced remobilization of fluvial sediments occurred during the cold/dry climate during Marine Oxygen Isotope Stages (MIS) 4 and 2. The depositional ages of the coastal sediments enabled the estimation of long-term uplift rates of ca. 0.5 to 3.5 mm/yr. The eolian cover sediments yielded MIS 3 (east) to Holocene ages (west). Our results provide new insight into the interplay of climate, sea-level changes, remobilization of sediments, and tectonism leading to tableland formation during the Late Quaternary.

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Sedimentary features and ages of fluvial terraces and their implications for geomorphic evolution of the Taomi River catchment: A case study in the Puli Basin, central Taiwan

Cited by 6 publications

References 38 publications

The Holocene paleo-environmental history of the Gangkou River estuary, Hengchun Peninsula, Taiwan

The Holocene paleo-environmental history of the Gangkou River estuary, Hengchun Peninsula, Taiwan

Late Quaternary landform evolution and sedimentary successions in the Miaoli Tableland, northwestern Taiwan

Late Quaternary formation of the Miaoli Tableland in northwest Taiwan, an interplay of tectonic uplift and fluvial processes dated by OSL

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