Congratulation for Our Deputy Editor-in-Chief Chunmiao Zheng Receiving Two Prestigious International Awards     

HAO Ziguo  FEI Hongcai  HAO Qingqing  LIU Lian  and Susan TURNER 《《地质学报》英文版》2014,88(6):1920-1921

正Dr.Chunmiao Zheng,a deputy editor-in-chief for Acta Geologica Sinica(English Edition),received the 2013 O.E.Meinzer Award from the Geological Society of America.Dr.Zheng was also awarded the 2013 M.King Hubbert Award by the National Ground Water Association in the United States."It is quite an achievement to receive both of these awards  相似文献   

Status of China’s Geological Survey and Geological Environments in 2013     

HAO Ziguo  FEI Hongcai  HAO Qingqing  Susan TURNER 《《地质学报》英文版》2014,88(3):1020-2021

正With the approach of the 45th World Earth Day,China’s Ministry of Land and Resources issued the status of the Chinese geological survey and environments on 22nd April 2013.Regional geological survey in 2013 achieved new results—(why was oceanic in twice?)polar and oceanic expedition were fully completed,a national census of geography was begun,and  相似文献   

Chinese Bio-oxidation Gold Extraction Technology Reaches International Advanced Level     

HAO Ziguo  FEI Hongcai  HAO Qingqing  Susan TURNER 《《地质学报》英文版》2014,88(5):1617-1617

In Liaoning, Hunan, Guangxi, Guizhou, Gansu, Sichuan, Anhui, Jilin and other provinces in China, there is a wide occurrence of metal quantity over 1000 tons of refractory gold ores, principally because of low gold recoveries and become ＂stay mine＂. Features of refi＇actory gold ores are： gold in micro-particles or a microscopic state that is wrapped in pyrite, presence of arsenopyrite and other sulfide minerals or disseminated in the crystal lattice of sulfide minerals; harmful impurity elements such as arsenic, carbon, mercury, antimony, copper with high content are closely related with the gold, and these elements affect the contact reaction between the gold and solvent extraction, making the recovery of the gold extraction process low. In the past 20 years, overseas countries have developed the application of the roasting oxidation method, hot acid （alkali） oxidation, bacterial oxidation and flash chlorination oxidation technology to solve this problem.Among these, biological oxidation has developed rapidly in the domestic market and gold enterprises abroad because of its low investment in infrastructure, low production costs, less environmental pollution, simple process and easy control, etc.  相似文献   

Roof of the World     

HAO Ziguo  FEI Hongcai  LIU Lian  and Susan TURNER 《《地质学报》英文版》2013,87(6):1743-1743

First Joint meeting of the Geological Society of China （GSC） and the Geological Society of America （GSA） Brought together by the GSA International Section Chengdu, China in 17-19 June 2013. The abstracts are available online and can be downloaded for free.  相似文献   

A comparison of satellite sounding data and aircraft measurements within a mature polar low     

J. TURNER  T. A. LACHLAN-COPE  J. C. MOORE 《地球，A辑:动力气象学与海洋学》1992,44(2):119-132

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Laser argon-40-argon-39 age determinations of Luna 24 mare basalts     

RAY BURGESS  GRENVILLE TURNER 《Meteoritics & planetary science》1998,33(4):921-935

Abstract— The ages of seven rock fragments from the soil fraction of the Luna 24 core have been determined using a laser ⁴⁰Ar-³⁹Ar stepped heating technique. The investigated lithologies include fragments of fine-grained ophitic basalt, coarse-grained basalt, metabasalts and a regolith breccia. Most of the samples contain nonradiogenic Ar components of variable ³⁶Ar/⁴⁰Ar composition. These surface-correlated trapped components are predominantly released at low temperature and can be distinguished from volume-correlated radiogenic and cosmogenic components released at higher temperature during stepped heating. Binary mixtures of radiogenic and cosmogenic Ar components give linear correlations on ³⁶Ar_t/⁴⁰Ar-³⁹Ar/⁴⁰Ar diagrams from which the age and ³⁶Ar/⁴⁰Ar value of trapped Ar can be determined. The ages obtained span a narrow range between 3.18-3.28 Ga with an average of 3.22 ± 0.04 Ga. This is interpreted as being the age of the basalts at the Luna 24 sampling site. Systematic age differences between lithologies were not detected; however, a single age of 2.93 Ga obtained from a coarse-grained basalt hints at the possibility of younger volcanism. The results of this work effectively triple the chronological information available for Mare Crisium and are within the range of radiometric age measurements of Luna 24 mare basalts obtained previously.  相似文献   

Magnitude,Scale, and Dynamics of the 2020 Mei-yu Rains and Floods over China※     

Ambrogio VOLONTé  Mark MUETZELFELDT  Reinhard SCHIEMANN  Andrew G.TURNER  Nicholas KLINGAMAN 《大气科学进展》2021,38(12):2082-2096

Large parts of East and South Asia were affected by heavy precipitation and flooding during early summer 2020. This study provides both a statistical and dynamical characterization of rains and floods affecting the Yangtze River Basin (YRB). By aggregating daily and monthly precipitation over river basins across Asia, it is shown that the YRB is one of the areas that was particularly affected. June and July 2020 rainfall was higher than in the previous 20 years, and the YRB experienced anomalously high rainfall across most of its sub-basins. YRB discharge also attained levels not seen since 1998/1999. An automated method detecting the daily position of the East Asian Summer Monsoon Front (EASMF) is applied to show that the anomalously high YRB precipitation was associated with a halted northward progression of the EASMF and prolonged mei-yu conditions over the YRB lasting more than one month. Two 5-day heavy-precipitation episodes (12?16 June and 4?8 July 2020) are selected from this period for dynamical characterization, including Lagrangian trajectory analysis. Particular attention is devoted to the dynamics of the airstreams converging at the EASMF. Both episodes display heavy precipitation and convergence of monsoonal and subtropical air masses. However, clear differences are identified in the upper-level flow pattern, substantially affecting the balance of airmass advection towards the EASMF. This study contextualizes heavy precipitation in Asia in summer 2020 and showcases several analysis tools developed by the authors for the study of such events.  相似文献   

A multiproxy (micro‐XRF,pollen, chironomid and stable isotope) lake sediment record for the Lateglacial to Holocene transition from Thomastown Bog,Ireland          下载免费PDF全文

JONATHAN N. TURNER  NAOMI HOLMES  STEPHEN R. DAVIS  MELANIE J. LENG  CATHERINE LANGDON  ROBERT G. SCAIFE 《第四纪科学杂志》2015,30(6):514-528

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Status of China’s Land Resources in 2013     

HAO Ziguo  FEI Hongcai  HAO Qingqing  Susan TURNER 《《地质学报》英文版》2014,88(3):1017-1018

正On 22nd April 2014,with the approach of the 45th World Earth Day,the Chinese Ministry of Land and Resources announced the status of China’s land resources in 2013,putting forward the implementation of strict farmland protection measures to ensure the 1.8 billion acres of arable land.This laid a solid foundation for achieving a"ten even increase"of  相似文献   

The World’s Salt Lakes: Today and Tomorrow     

ZHENG Mianping  HAO Ziguo  FEI Hongcai  HUANG Min  ZHOU Jian  Susan TURNER 《《地质学报》英文版》2014,88(Z1)

正The 12th International Conference on Salt Lake Research,which is organized jointly by International Society of Salt Lake and The Institute of Mineral Resources,Chinese Academy of Geological Sciences,will be held on July 14–18,2014 in Langfang,Hebei Province,China.The conference themes focus on future and global salt lake sustainable research and development and will bring together international specialists in limnology,sedimentology,geology,geochemistry,biology,  相似文献