Rapid Quaternary emergence, uplift, and denudation of the Coastal Range, eastern Taiwan

Research Article| July 01, 1990 Rapid Quaternary emergence, uplift, and denudation of the Coastal Range, eastern Taiwan Neil Lundberg; Neil Lundberg 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Search for other works by this author on: GSW Google Scholar Rebecca J. Dorsey Rebecca J. Dorsey 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Search for other works by this author on: GSW Google Scholar Author and Article Information Neil Lundberg 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Rebecca J. Dorsey 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1990) 18 (7): 638–641. https://doi.org/10.1130/0091-7613(1990)018<0638:RQEUAD>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Neil Lundberg, Rebecca J. Dorsey; Rapid Quaternary emergence, uplift, and denudation of the Coastal Range, eastern Taiwan. Geology 1990;; 18 (7): 638–641. doi: https://doi.org/10.1130/0091-7613(1990)018<0638:RQEUAD>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract A thick sequence of orogenic strata exposed in the Coastal Range of eastern Taiwan documents uplift of at least 7.5 and 5.9 km at two anticlinal crests following marine deposition of the uppermost preserved beds at ∼1.0 Ma. The resulting mean uplift rates of 7.5 and 5.9 mm/yr are minimum values for localities that represent relative maxima in total uplift, and are consistent with previous studies that document general uplift of about 5 mm/yr in Taiwan. Despite rapid uplift, the Coastal Range is transected by the antecedent course of the Hsiukuluan River. Maintenance of this transverse drainage, rather than defeat and diversion to a ready alternate course to the sea provided by the range-bounding Longitudinal Valley, suggests that uplift has been steady over time and exemplifies a general balance between uplift and denudation rates in Taiwan. Denudation in the Coastal Range approximates the rapid present-day denudation documented in the much higher Central Range, due at least in part to less resistant rock types in the Coastal Range. Uplift of the Coastal Range is driven by the tectonic incorporation of the Luzon island arc into the Taiwan mountain belt (and thus into the Asian continental margin), probably over a west-dipping decollement hypothesized to have formed during eastward propagation of the eastern deformation front of the dominantly west-vergent orogen. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.