Application of cluster analysis to western China population quality assessment

2014 ◽  
pp. 251-254
Keyword(s):  
Cluster Analysis ◽  
Quality Assessment ◽  
Western China ◽  
Population Quality

Middle Ordovician actinocerid nautiloids (Cephalopoda) from Xainza County, Tibet, western China, and their paleogeographic implications

2018 ◽  
Vol 92 (3) ◽  
pp. 398-411 ◽  
Author(s):  
Xiang Fang ◽  
Tingen Chen ◽  
Clive Burrett ◽  
Yongsheng Wang ◽  
Yonggui Qu ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
New Species ◽  
North America ◽  
South China ◽  
North China ◽  
Western China ◽  
Middle Ordovician ◽  
Lhasa Terrane ◽  
First Time ◽  
The Himalaya

AbstractActinocerid nautiloids from the Lhasai Formation in the Xainza region are studied systematically for the first time. The nautiloids are identified as Middle Ordovician in age based on stratigraphic correlations with those from North China, Sibumasu, North Australia (northern Gondwana), and North America (Laurentia). A cluster analysis shows strong affinities between the actinocerid nautiloids of the Lhasa Terrane and those of the Himalaya, North China, and Sibumasu terranes. Our results support Middle Ordovician paleogeographic reconstructions that place North China rather than South China much closer to Australia. Nine species assigned to six genera of Meitanoceratidae, Wutinoceratidae, Armenoceratidae, Ormoceratidae, and Discoactinoceratidae are described in detail:Pomphoceras nyalamense(Chen, 1975),Pomphoceras yaliense(Chen, 1975),Wutinocerascf.W.foerstei(Endo, 1930),Mesowutinoceras giganteumChen in Chen and Zou, 1984,Armenoceras tani(Grabau, 1922),Armenoceras teichertiEndo, 1932,Armenoceras xizangensenew species,Deiroceras globosomZou and Shen in Chen and Zou, 1984, andDiscoactinocerascf.D.multiplexumKobayashi, 1927.UUID:http://zoobank.org/ba851fea-e107-4754-a0f4-a70744e325ab

Water quality assessment based on interval-valued data cluster analysis

2021 ◽  
Vol 213 ◽  
pp. 84-90
Author(s):  
Siqing Shan ◽  
Yuebin Bai ◽  
Xiaojing Wang
Keyword(s):  
Water Quality ◽  
Cluster Analysis ◽  
Quality Assessment ◽  
Water Quality Assessment ◽  
Interval Valued
Sign in / Sign up

Export Citation Format

Share Document