File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1002/(SICI)1096-9837(199810)23:10<889::AID-ESP907>3.0.CO;2-E
- Scopus: eid_2-s2.0-0032415029
- WOS: WOS:000076389600003
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Geomorphological problems of the middle reaches of the Tsangpo River, Tibet
Title | Geomorphological problems of the middle reaches of the Tsangpo River, Tibet |
---|---|
Authors | |
Issue Date | 1998 |
Publisher | John Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/2388 |
Citation | Earth Surface Processes And Landforms, 1998, v. 23 n. 10, p. 889-903 How to Cite? |
Abstract | The middle reaches of the Tsangpo River consist of alternating sections of wide valleys and gorges. The wide valley sections have braided and anastomosing channels, gentle hydraulic gradients, thick alluvial deposits and low terraces. In contrast, the gorge sections exhibit single, straight and deeply entrenched meandering channels with steep hydraulic gradients, bare rock river beds and higher terraces. Several hypotheses have been used to explain these unusual fluvial landforms, but geologists, landform and sedimentary analyses along with dating information, suggest that the key could be the active faults across the river valley. All gorge sections are located on the upthrown side of active faults, which mainly occured in or after the Pliocene, whilst the wide valley sections appear on the downthrown side. The faulting blocked the river and caused the formation of palaeolakes, with thick deposits laid down behind the faults. Therefore, depositional wide valleys were formed and old terraces were buried. On these downthrown sides of the faults, braided and anastomosing channels have developed. On the upthrown sides, strong incision of the river occurred because of the changes of the local base levels and river gradients. As a result, deep gorges and deeply entrenched meandering channels formed in various lithologies. The terraces on the gorge slope indicate different stages of river incision and the related knick points appeared close to the local active faults. Rock resistance is only a minor influence on the alteration of valley forms and river gardients in this area. |
Persistent Identifier | http://hdl.handle.net/10722/86346 |
ISSN | 2023 Impact Factor: 2.8 2023 SCImago Journal Rankings: 0.976 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, DD | en_HK |
dc.date.accessioned | 2010-09-06T09:15:43Z | - |
dc.date.available | 2010-09-06T09:15:43Z | - |
dc.date.issued | 1998 | en_HK |
dc.identifier.citation | Earth Surface Processes And Landforms, 1998, v. 23 n. 10, p. 889-903 | en_HK |
dc.identifier.issn | 0197-9337 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/86346 | - |
dc.description.abstract | The middle reaches of the Tsangpo River consist of alternating sections of wide valleys and gorges. The wide valley sections have braided and anastomosing channels, gentle hydraulic gradients, thick alluvial deposits and low terraces. In contrast, the gorge sections exhibit single, straight and deeply entrenched meandering channels with steep hydraulic gradients, bare rock river beds and higher terraces. Several hypotheses have been used to explain these unusual fluvial landforms, but geologists, landform and sedimentary analyses along with dating information, suggest that the key could be the active faults across the river valley. All gorge sections are located on the upthrown side of active faults, which mainly occured in or after the Pliocene, whilst the wide valley sections appear on the downthrown side. The faulting blocked the river and caused the formation of palaeolakes, with thick deposits laid down behind the faults. Therefore, depositional wide valleys were formed and old terraces were buried. On these downthrown sides of the faults, braided and anastomosing channels have developed. On the upthrown sides, strong incision of the river occurred because of the changes of the local base levels and river gradients. As a result, deep gorges and deeply entrenched meandering channels formed in various lithologies. The terraces on the gorge slope indicate different stages of river incision and the related knick points appeared close to the local active faults. Rock resistance is only a minor influence on the alteration of valley forms and river gardients in this area. | en_HK |
dc.language | eng | en_HK |
dc.publisher | John Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/2388 | en_HK |
dc.relation.ispartof | Earth Surface Processes and Landforms | en_HK |
dc.rights | Earth Surface Processes and Landforms. Copyright © John Wiley & Sons Ltd. | en_HK |
dc.title | Geomorphological problems of the middle reaches of the Tsangpo River, Tibet | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0197-9337&volume=23&spage=889&epage=903&date=1998&atitle=Geomorphological+problems+of+the+Middle+reaches+of+the+Tsangpo+River,+Tibet | en_HK |
dc.identifier.email | Zhang, DD:zhangd@hkucc.hku.hk | en_HK |
dc.identifier.authority | Zhang, DD=rp00649 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/(SICI)1096-9837(199810)23:10<889::AID-ESP907>3.0.CO;2-E | en_HK |
dc.identifier.scopus | eid_2-s2.0-0032415029 | en_HK |
dc.identifier.hkuros | 44409 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0032415029&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 23 | en_HK |
dc.identifier.issue | 10 | en_HK |
dc.identifier.spage | 889 | en_HK |
dc.identifier.epage | 903 | en_HK |
dc.identifier.isi | WOS:000076389600003 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Zhang, DD=9732911600 | en_HK |
dc.identifier.issnl | 0197-9337 | - |