Based on detailed geologic study, the important role of structuring in the formation of gold deposits in the area is discussed with special reference to structural evolution. Syngenetic faulting contemporaneous with t...Based on detailed geologic study, the important role of structuring in the formation of gold deposits in the area is discussed with special reference to structural evolution. Syngenetic faulting contemporaneous with tectonic-volcanic events is thought to be responsible for providing the ore-forming material at depth. The lithofacies formed by highly alternating deposition of terrestrial and carbonate detritus is chemically characterized by the assemblage of Au-Sb-As,constituting a favorable source bed for the activation and enrichment of gold. This gold source bed has undergone four major stages of structural deformation, accompanied by multi-staged alteration and mineralization.展开更多
This study was conducted to define the taxonomic status of Spermophilus in the plague area of Dingbian County in Shaanxi Province,China,through the two-factor variance analysis of morphological characteristics,DNA bar...This study was conducted to define the taxonomic status of Spermophilus in the plague area of Dingbian County in Shaanxi Province,China,through the two-factor variance analysis of morphological characteristics,DNA barcoding,and chromosome karyotype analysis.展开更多
Qin pepper,a famous local agricultural product of Shaanxi Province,has grown in Guanzhong Area for several hundred years.In recent years,Qin pepper industry has already made considerable progresses,but it also faces m...Qin pepper,a famous local agricultural product of Shaanxi Province,has grown in Guanzhong Area for several hundred years.In recent years,Qin pepper industry has already made considerable progresses,but it also faces many challenges.To ensure a stable planting area of over 100 000 hm 2,a total output of 1.85 million tons and a ratio of 1:2:2 among freshly used peppers,dried peppers and processed peppers in 2015,on the basis of full investigation,expert argumentation as well as research and analysis,industrialization modes of " leading enterprise + agricultural department + base"," leading enterprise + agricultural company" and " leading enterprise + specialized cooperative" are presented herein,on the principle of " appropriate centralization,scale development,company operation,and plate promotion" and in accordance with the general idea of " stabilizing area,optimizing layout;relying on technology,highlighting superior quality;leading by enterprises,and improving efficiency".Some development strategies including " optimizing layout to facilitate plate promotion;increasing science and technology input to improve industrial competitiveness;supporting leading enterprises to accelerate industrialization process;promoting industrial certification to make well-known brands" are also put forward herein.展开更多
Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD con...Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD control and prevention.Methods In September2012,four historical KBD areas were selected,including Yongshou,Yuyang,Linyou and Nanzheng,four展开更多
文摘Based on detailed geologic study, the important role of structuring in the formation of gold deposits in the area is discussed with special reference to structural evolution. Syngenetic faulting contemporaneous with tectonic-volcanic events is thought to be responsible for providing the ore-forming material at depth. The lithofacies formed by highly alternating deposition of terrestrial and carbonate detritus is chemically characterized by the assemblage of Au-Sb-As,constituting a favorable source bed for the activation and enrichment of gold. This gold source bed has undergone four major stages of structural deformation, accompanied by multi-staged alteration and mineralization.
基金supported by the grant of the Science and Technology Research and Development of Shaanxi Province[No.2012K16-12-03]
文摘This study was conducted to define the taxonomic status of Spermophilus in the plague area of Dingbian County in Shaanxi Province,China,through the two-factor variance analysis of morphological characteristics,DNA barcoding,and chromosome karyotype analysis.
文摘Qin pepper,a famous local agricultural product of Shaanxi Province,has grown in Guanzhong Area for several hundred years.In recent years,Qin pepper industry has already made considerable progresses,but it also faces many challenges.To ensure a stable planting area of over 100 000 hm 2,a total output of 1.85 million tons and a ratio of 1:2:2 among freshly used peppers,dried peppers and processed peppers in 2015,on the basis of full investigation,expert argumentation as well as research and analysis,industrialization modes of " leading enterprise + agricultural department + base"," leading enterprise + agricultural company" and " leading enterprise + specialized cooperative" are presented herein,on the principle of " appropriate centralization,scale development,company operation,and plate promotion" and in accordance with the general idea of " stabilizing area,optimizing layout;relying on technology,highlighting superior quality;leading by enterprises,and improving efficiency".Some development strategies including " optimizing layout to facilitate plate promotion;increasing science and technology input to improve industrial competitiveness;supporting leading enterprises to accelerate industrialization process;promoting industrial certification to make well-known brands" are also put forward herein.
文摘Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD control and prevention.Methods In September2012,four historical KBD areas were selected,including Yongshou,Yuyang,Linyou and Nanzheng,four
