Genetic type of basement granite from volcanic arc in the north of West Burma Block is S-type granites, which developed in volcanic arc of convergent plate margins. The results yield a group of weighted mean ^206pb/^2...Genetic type of basement granite from volcanic arc in the north of West Burma Block is S-type granites, which developed in volcanic arc of convergent plate margins. The results yield a group of weighted mean ^206pb/^238U ages at 102±0.81 Ma （MSWD=0.23）, which show similarity to 93.7±3.4 Ma in the northern part of sampling points and 105±2 Ma in the southern part of sampling points, indicating continuous development of volcanic arc in the north of West Burma Block and subsequent granitic intrusion of late Early Cretaceous. The apatite fission track age of the samples is 22.72±3 Ma, thermal history modeling reveals that the volcanic arc in the north of West Burma Block went through two main stages in the process of uplift-cooling since Cenozoic： rapid uplifting and cooling from Late Oligocene to Early Miocene （29±1 to 20±1 Ma） and slow uplifting and cooling since Early Pliocene （4.2±1 Ma）.展开更多
This paper studies several travel accounts featuring transcultural and transnational experiences in the Yunnan-Burma borderlands where the British, Chinese, French and various indigenous peoples encountered each other...This paper studies several travel accounts featuring transcultural and transnational experiences in the Yunnan-Burma borderlands where the British, Chinese, French and various indigenous peoples encountered each other, including Yangwentun xiaoyin, an anonymous ＂ballad＂ circulated in late Qing and Republican Yunnan, Ai Wu＇s （1904-92） early fiction based upon his wanderings in Yunnan and Burma from 1925 to 1931, and Xiao Qian＇s （1910-99） utopian ＂travelogue＂ featuring a European couple＇s futuristic travel to the area. These writings illustrate the intersection of issues of nation, ethnicity, and gender, which are intertwined with the discourse of barbarism： On the one hand, their authors often express anxiety over threats to China＇s dominance in this area; on the other, frequently resorting to the discourse of barbarism, these accounts, tinged with Sino-centrism, often exoticize and barbarize other cultures, particularly indigenous groups. The eroticized and racialized female body constitutes a privileged site of representation in these writings： On the one hand, travel writings often make a distinction between Han Chinese women and indigenous women, treating the latter as exotic, seductive, dangerous, and/or primitive; on the other hand, as the need to build a strong, modernized multi-ethnic nation became increasingly urgent, Republican authors began to ＂universalize＂ the female body, Chinese or indigenous, treating both as threatened and exploited by the Western ＂newcomer,＂ and thus are （potential） allies sharing a nationalist, anti-imperialist cause.展开更多
Accurately characterizing the three-dimensional geometric contacts between the crust of the Chinese mainland and adjacent regions is important for understanding the dynamics of this part of Asia from the viewpoint of ...Accurately characterizing the three-dimensional geometric contacts between the crust of the Chinese mainland and adjacent regions is important for understanding the dynamics of this part of Asia from the viewpoint of global plate systems.In this paper,a method is introduced to investigate the geometric contacts between the Eurasian and Indian plates at the Burma arc subduction zone using earthquake source parameters based on the Slab1.0 model of Hayes et al.(2009,2010).The distribution of earthquake focus depths positioned in 166 sections along the Burma Arc subduction zone boundary has been investigated. Linear plane fitting and curved surface fitting has been performed on each section.Three-dimensional geometric contacts and the extent of subduction are defined quantitatively.Finally,the focal depth distribution is outlined for six typical sections along the Burma arc subduction zone,combining focal mechanisms with background knowledge of geologic structure.Possible dynamic interaction patterns are presented and discussed.This paper provides an elementary method for studying the geometric contact of the Chinese mainland crust with adjacent plates and serves as a global reference for dynamic interactions between plates and related geodynamic investigations.展开更多
基金supported by the Major National Science and Technology Programs in the Twelfth Five-Year Plan Period(No. 2011ZX05030-002-003)the Major National Science and Technology Programs in the Eleventh Five-Year Plan Period(No. 2008ZX05030-02-03-01)the Open Research Fund of Key Laboratory of Tectonics and Petroleum Resources of Min-istry of Education, China (No. TPR-2011-07)
文摘Genetic type of basement granite from volcanic arc in the north of West Burma Block is S-type granites, which developed in volcanic arc of convergent plate margins. The results yield a group of weighted mean ^206pb/^238U ages at 102±0.81 Ma （MSWD=0.23）, which show similarity to 93.7±3.4 Ma in the northern part of sampling points and 105±2 Ma in the southern part of sampling points, indicating continuous development of volcanic arc in the north of West Burma Block and subsequent granitic intrusion of late Early Cretaceous. The apatite fission track age of the samples is 22.72±3 Ma, thermal history modeling reveals that the volcanic arc in the north of West Burma Block went through two main stages in the process of uplift-cooling since Cenozoic： rapid uplifting and cooling from Late Oligocene to Early Miocene （29±1 to 20±1 Ma） and slow uplifting and cooling since Early Pliocene （4.2±1 Ma）.
文摘This paper studies several travel accounts featuring transcultural and transnational experiences in the Yunnan-Burma borderlands where the British, Chinese, French and various indigenous peoples encountered each other, including Yangwentun xiaoyin, an anonymous ＂ballad＂ circulated in late Qing and Republican Yunnan, Ai Wu＇s （1904-92） early fiction based upon his wanderings in Yunnan and Burma from 1925 to 1931, and Xiao Qian＇s （1910-99） utopian ＂travelogue＂ featuring a European couple＇s futuristic travel to the area. These writings illustrate the intersection of issues of nation, ethnicity, and gender, which are intertwined with the discourse of barbarism： On the one hand, their authors often express anxiety over threats to China＇s dominance in this area; on the other, frequently resorting to the discourse of barbarism, these accounts, tinged with Sino-centrism, often exoticize and barbarize other cultures, particularly indigenous groups. The eroticized and racialized female body constitutes a privileged site of representation in these writings： On the one hand, travel writings often make a distinction between Han Chinese women and indigenous women, treating the latter as exotic, seductive, dangerous, and/or primitive; on the other hand, as the need to build a strong, modernized multi-ethnic nation became increasingly urgent, Republican authors began to ＂universalize＂ the female body, Chinese or indigenous, treating both as threatened and exploited by the Western ＂newcomer,＂ and thus are （potential） allies sharing a nationalist, anti-imperialist cause.
基金supported by the National Science and Technology Support Plan Project (Grant No.2012BAK19B01-04)
文摘Accurately characterizing the three-dimensional geometric contacts between the crust of the Chinese mainland and adjacent regions is important for understanding the dynamics of this part of Asia from the viewpoint of global plate systems.In this paper,a method is introduced to investigate the geometric contacts between the Eurasian and Indian plates at the Burma arc subduction zone using earthquake source parameters based on the Slab1.0 model of Hayes et al.(2009,2010).The distribution of earthquake focus depths positioned in 166 sections along the Burma Arc subduction zone boundary has been investigated. Linear plane fitting and curved surface fitting has been performed on each section.Three-dimensional geometric contacts and the extent of subduction are defined quantitatively.Finally,the focal depth distribution is outlined for six typical sections along the Burma arc subduction zone,combining focal mechanisms with background knowledge of geologic structure.Possible dynamic interaction patterns are presented and discussed.This paper provides an elementary method for studying the geometric contact of the Chinese mainland crust with adjacent plates and serves as a global reference for dynamic interactions between plates and related geodynamic investigations.
