A "Yellow Cap" on Quaternary Red Clay in Jiujiang,Jiangxi Province

A thin layer of yellow-brown-colored earth was generally found on Quaternary red clay in Jiujiang,Jiangxi Province. A typical profile was established. Both particle size distribution and REE (rare earthelements) characteristics of the yellow-brown-colored earth of the profile fully suggested its aeolian origin andclose similarity to Naming Xiashu loess. The study also implied aeolian origin of the underlying Quaternaryred clap Compared with the red clay, the yellow- brown- colored earth was less weathered because of its lowercontent of free iron and higher mole ratios of SiO2/A12O3 and SiO2/(Fe2O3+A12O3 ) as well as its lessdeveloped chemical microtextures of quartz grains.In order to study the aged of the two deposits comparatively, the thermoluminescent dating method wasused. As a result, the bottom of the yellow-brown-colored esrth was dated to 6015 ka B. P. and the upperpart of the red clay 38854 ka B. P. It was suggested that the yellow- browm- colored earth was formed inthe Late Pleistocene and was probably the aeolian deposit of the Last Glacial, which corresponded with theMalan loess in the Loess Plateau of the northwestern part of China; while the underlying red clay was formedin the Middle Pleistocene.A "yellow cap" on Quaternary red clay in Jiujiang implied a great climatic and environmental varistionin the beginning of the Late Pleistocene in the southern pot of China, especially in the middle and lowerreaches of the Yangtze River. The eveal not only halted the rubification, once dominating the region, butalso produced a widespread covering of aeolian deposit, as only occurred in the cold and dry environment.

PROGRESS IN QUATERNARY AEOLIAN ENVIRONMENT RESEARCH

Quaternary aeolian environment researches were mainly conducted by analyzing the information carriers, extracting valuable evidences about aeolian environment changes, so to presume and reconstruct paleoenvironments. This paper formulated progress in Quaternary aeolian environment research using dune-morphological records, sedimentological records and bio-fossils records, as well as advances about chronology; presented that people should pay more attention to further synthetic study of multi-types of records including dune morphology, size, formation time, sediment supply, and their relations with wind regime in future, especially the research on dating method.

班级管理的“脊梁”——浅谈班集体的“三风”建设

实施素质教育必须重视班集体建设，重视班集体建设就必须抓好“三风”建设，本文简要谈谈班集体的“三风”建设。

小纪风电场升压站35kV侧系统中性点接地方式研究

风电场中的风力涡轮机分布较为分散。所有风力涡轮机分为2-3组。每组6-8台风力涡轮机通过收集线串联,将电力输送到升压站。内部集电线路输电通常使用35kV电缆或架空线路,线路总长约4.5km。风电场升压站低压侧中性点触地可利用无接地法、消弧线圈触地法和小电阻接地法。

Style and Guile in the 18th Century

Jean Moreau le Jeune＇s Monument du costume physique et moral （Monument of physical and moral costume） presents costumes, usages, and d6cors in vogue in French high society at the end of the 18th century. In its 26 folio-sized plates, elegant appearances denote social standing. Captions added to these engravings turn them into an idealized history of manners. The 1789 Neuwied edition of the Monument sponsored by the banker and amateur artist Jean-Henri Eberts enriches each titled image with an accompanying text, written by Restif de la Bretonne. Restif＇s stories disrupt the unity between fashion and morality suggested by the captioned images. Interplay between image, caption, and text realigns style with deception, and makes the 1789 Monument du costume a testament to the fragility of the ancien r6gime, a world poised between order and disorder.

Active tectonic deformation and its seismic-geological signifi cance of boundary faults of the Daxing Uplift and Langgu-Dachang Depression,Beijing Plain,China

Boundary faults of the Daxing Uplift and Langgu-Dachang Depression are located in the southeastern region of the Beijing Plain and directly control the sedimentation,tectonic evolution,and strong seismic activity of the plain.The Sanhe-Pinggu earthquake of Ms 8.0 occurred in 1679,but the active tectonic deformation characteristics of the boundary have been rarely discussed.In this study,the active tectonic deformation characteristics of the Daxing Uplift and Langgu-Dachang Depression boundary rupture were investigated by collecting and analyzing the results of previous works,supplementing three shallow-seismicexploration control lines at locations where the data are lacking,and carrying out borehole combined profi le exploration and optically stimulated luminescence dating at local breakpoints.Results show that the Daxing Uplift and Langgu-Dachang Depression boundary faults constitute an active tectonic deformation zone with~50 km distance between Mafang and Niubaotun towns and then extends to both ends to form a deep and large fault that cuts through the earth’s crust.The activity of the Daxing Uplift eastern boundary fault may be divided into two sections near Anding town,with the early-to-middle Late Pleistocene gradually weakening in the northwest and the Holocene gradually weakening in the southwest.Moreover,the activity of the Xiadian fault may be divided into two sections near the Chaobai River:the Holocene gradually weakening in the northwest and the early-to-middle Late Pleistocene gradually weakening in the southwest.The boundary fault of the Daxing Uplift and Langgu-Dachang Depression has an~43 km seismic gap around Niubaotun town,which has a high risk of Ms 6.0-7.0 earthquakes.This investigation into the active tectonic deformation characteristics of the boundary fault of the Daxing Uplift and Langgu-Dachang Depression is crucial for analyzing the strong earthquake rupture behavior and the future risk of strong earthquakes in this area.It also contributes greatly to the study of the tectonic pattern evolution of the North China Plain and Beijing Plain.

互見與内向轉型:論范成大的地方書寫觀念

南宋詩人范成大,不僅是文學史上的“中興四大家”之一,還是一位傑出的旅行者和地理學家。他一生創作了十餘部與地理相關的著述,包括“紀行四集”、“石湖三録”和“方志三書”等。其中的《攬轡録》《驂鸞録》《吴船録》《桂海虞衡志》《吴郡志》等,是中國古代著名的地理文獻。其《石湖詩集》編年分卷,收録了大量紀行、紀風的詩歌,且有較清晰的時間繫年和空間定位,體現出明確的編纂意圖。因此,對范成大紀行文學和風土文學的研究,一直以來都是學界熱點。在這其中,尤以對范氏地理書寫的理論性研究成果。