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Full-Text Articles in Social and Behavioral Sciences
Channel Adjustments In Response To The Operation Of Large Dams: The Upper Reach Of The Lower Yellow River, Yuanxu Ma, He Qing Huang, Gerald C. Nanson, Yongi Li, Wenyi Yao
Channel Adjustments In Response To The Operation Of Large Dams: The Upper Reach Of The Lower Yellow River, Yuanxu Ma, He Qing Huang, Gerald C. Nanson, Yongi Li, Wenyi Yao
Faculty of Science - Papers (Archive)
The Yellow River in China carries an extremely large sediment load. River channel-form and lateral shifting in a dynamic, partly meandering and partly braided reach of the lower Yellow River, have been significantly influenced by construction of Sanmenxia Dam in 1960, Liujiaxia Dam in 1968, Longyangxia Dam in 1985 and Xiaolangdi Dam in 1997. Using observations from Huayuankou Station, 128 km downstream of Xiaolangdi Dam, this study examines changes in the river before and after construction of the dams. The temporal changes in the mean annual flow discharge and mean annual suspended sediment concentration have been strongly influenced by operation …
Holocene Environmental Changes In Central Inner Mongolia Revealed By Luminescence Dating Of Sediments From The Sala Us River Valley, Sheng-Hua Li, Jimin Sun, Bo Li
Holocene Environmental Changes In Central Inner Mongolia Revealed By Luminescence Dating Of Sediments From The Sala Us River Valley, Sheng-Hua Li, Jimin Sun, Bo Li
Faculty of Science, Medicine and Health - Papers: part A
Luminescence dating of the fluvial and lacustrine sediments from the Sala Us River valley at the south edge of the Mu Us Desert, central Inner Mongolia, is reported. The study region lies in the northwestern marginal zone of the east Asian summer monsoon and is sensitive to climate change. The dating results combined with environmental proxies indicate that the Holocene Climate Optimum period, took place from 8.5 to 5 ka ago and was marked by lake development. After ~5 ka ago, the region became arid, as inferred from lake regression and fluvial activity. Deposition of fluvial sediments lasted from ~5 …
Slip Rate Of The Aksay Segment Of Altyn Tagh Fault Revealed By Osl Dating Of River Terraces, Yiwei Chen, Sheng-Hua Li, Bo Li
Slip Rate Of The Aksay Segment Of Altyn Tagh Fault Revealed By Osl Dating Of River Terraces, Yiwei Chen, Sheng-Hua Li, Bo Li
Faculty of Science - Papers (Archive)
The slip rate of Altyn Tagh Fault (ATF) was studied near the Aksay segment (39°24.572´N, 94°16.012´E), China, based on dating the terraces of a river passing through the ATF. Two river terrace risers were offset by the ATF and the fault displacements were recorded. Average slip rate of the Aksay segment of the ATF was estimated using the offset of terrace risers divided by the corresponding ages. The ages of the terraces were determined by optical dating of the loess deposited on the river terrace. Our results demonstrated that: (1) The optically stimulated luminescence (OSL) ages of loess can be …
"Rain Water: River Otters Sacrifice Fish", Jo Law
"Rain Water: River Otters Sacrifice Fish", Jo Law
Faculty of Creative Arts - Papers (Archive)
This pentad began with a very warm spring day. Bellambi (AWS) recorded a maximum of 26.7ºC on Thursday August 23rd. Where we were in Sydney, the highest temperature reached 30ºC. In the city, many people wore their summer ensemble perfectly at ease in the hot sun; leaving some of us, who caught off-guard by the sudden shift in weather, wandering with our woollens tied around our waists or stuffed in our bags like visitors from a cold country. Like a Proustian madeleine, the warm air jolts the body’s memories, and, for a brief moment, I was immersed in a hot …