The results of recent mineral exploration in the Yuele lead-zinc mining area of Daguan County, northeastern Yunnan province, showed that there are much early Paleozoic strata under thick late Paleozoic strata in north...The results of recent mineral exploration in the Yuele lead-zinc mining area of Daguan County, northeastern Yunnan province, showed that there are much early Paleozoic strata under thick late Paleozoic strata in northeastern Yunnan province, where developed some hidden salt structures (SSs), often with lead-zinc polymetallic mineralization varying degrees along the tension torsional fault (belts) or fracture (joint). The ore-bodies belong to the epigenetic hydrothermal filling vein-type deposit, and the prospecting potential is great. In this area, the superficial mineralization information displayed clear, but the deep mineralization is unknown, so the exploration work is restricted. The audio-megnetotelluric (AMT) surveying is an advantageous method to characterize the size, resistivity and skin depth of the polarizable mineral deposit concealed beneath thick overburden. This paper presents the surveying results using AMT method to evaluate the concealed lead-zinc mineralization in Yuele lead-zinc ore field, Daguancounty, NE Yunnan province, China. After comparing the interpretation result of AMT surveying data with the geological data and the drilling data, it is found that there is some distinct difference in resistivity and polarizable between ore-bodies hosted strata, upper strata and gypsum strata. The results show that AMT method is helpful to identify lead-zinc mineralization under this geological condition.展开更多
宁波出入境检验检疫局植检实验室在对本地热处理企业线虫处理效果进行监测时,从一批采自余姚四明山林场的黄山松(Pinus tai wanensi)木包装中截获一种伞滑刃属线虫.对该线虫进行培养、形态学观察、测量以及分子研究,鉴定为程氏伞滑刃线...宁波出入境检验检疫局植检实验室在对本地热处理企业线虫处理效果进行监测时,从一批采自余姚四明山林场的黄山松(Pinus tai wanensi)木包装中截获一种伞滑刃属线虫.对该线虫进行培养、形态学观察、测量以及分子研究,鉴定为程氏伞滑刃线虫(Bursaphelenchus chengiLi,Trinh,Waeyenberge&Moens,2008).该线虫属abietinus组,侧区有2条侧线,雄虫交合刺成对,强壮,长约18～22μm,末端约1/3处强烈向腹面弯曲.雌虫尾端略向腹面弯曲,末端钝圆或尖,有时有不规则的尾尖突.该线虫与树皮象伞滑刃线虫(B.hylobianum)、安东尼伞滑刃线虫(B.antoniae)在形态上十分接近,但ITS-RFLP图谱以及序列分析结果有明显差异.目前仅南京口岸曾从来自我国台湾的木质包装中截获该线虫.展开更多
文摘The results of recent mineral exploration in the Yuele lead-zinc mining area of Daguan County, northeastern Yunnan province, showed that there are much early Paleozoic strata under thick late Paleozoic strata in northeastern Yunnan province, where developed some hidden salt structures (SSs), often with lead-zinc polymetallic mineralization varying degrees along the tension torsional fault (belts) or fracture (joint). The ore-bodies belong to the epigenetic hydrothermal filling vein-type deposit, and the prospecting potential is great. In this area, the superficial mineralization information displayed clear, but the deep mineralization is unknown, so the exploration work is restricted. The audio-megnetotelluric (AMT) surveying is an advantageous method to characterize the size, resistivity and skin depth of the polarizable mineral deposit concealed beneath thick overburden. This paper presents the surveying results using AMT method to evaluate the concealed lead-zinc mineralization in Yuele lead-zinc ore field, Daguancounty, NE Yunnan province, China. After comparing the interpretation result of AMT surveying data with the geological data and the drilling data, it is found that there is some distinct difference in resistivity and polarizable between ore-bodies hosted strata, upper strata and gypsum strata. The results show that AMT method is helpful to identify lead-zinc mineralization under this geological condition.
文摘宁波出入境检验检疫局植检实验室在对本地热处理企业线虫处理效果进行监测时,从一批采自余姚四明山林场的黄山松(Pinus tai wanensi)木包装中截获一种伞滑刃属线虫.对该线虫进行培养、形态学观察、测量以及分子研究,鉴定为程氏伞滑刃线虫(Bursaphelenchus chengiLi,Trinh,Waeyenberge&Moens,2008).该线虫属abietinus组,侧区有2条侧线,雄虫交合刺成对,强壮,长约18～22μm,末端约1/3处强烈向腹面弯曲.雌虫尾端略向腹面弯曲,末端钝圆或尖,有时有不规则的尾尖突.该线虫与树皮象伞滑刃线虫(B.hylobianum)、安东尼伞滑刃线虫(B.antoniae)在形态上十分接近,但ITS-RFLP图谱以及序列分析结果有明显差异.目前仅南京口岸曾从来自我国台湾的木质包装中截获该线虫.
