对“浙江长兴二叠系-三叠系界线层型剖面面临的新问题”一文的商榷

承蒙<地层学杂志>编辑部寄来王成源先生"浙江长兴二叠系-三叠系界线层型剖面面临的新问题"一文(以下简称王文)征求意见,兹将我们对其2、3两段的意见表述如下,供大家讨论:     

甘肃省服务干旱指标的初步研究

利用前期底墒降水和当时降水、气温,确定了适合甘肃的干旱指数,提出了用干旱指数划分服务干旱等级的指标和气候年景划分标准。用该等级和标准与降水量、土壤湿度比较分析,能较客观地反映旱涝实际情况。     

有关金刚石成因等若干重大问题的新认识

本文从世界范围内阐述金刚石的分布。来源,成因及其形成条件和保存条件,找出了找矿方向,开拓了找矿思路,扩大了找矿领域,对于发现和突破金伯利岩型,橄榄金云火山岩型及新类型的金刚石原生矿床,具有指导意义。     

中国沉积学若干领域的回顾与展望--庆祝《沉积学报》创刊二十周年

主要选取沉积环境与沉积体系、碳酸盐岩、碎屑岩成岩作用、层序地层学、沉积盆地分析与模拟、中国海海底沉积作用、油气储层沉积学、矿床沉积学等若干领域 ,对我国沉积学作一简要回顾与展望 ,并借此庆祝《沉积学报》创刊二十周年。     

1303年9月17日山西省洪赵县地震考察报告

为弄清元大德七年癸卯八月六日(公元1303年9月17日)山西洪赵县大地震的情况，于1967年7月至1967年11月作了2次野外调查，根据调查的结果，叙述了此次地震的概况，分别对Ⅹ度、Ⅸ度、Ⅷ度、Ⅶ度烈度区的范围、自然概况、人员伤亡情况等进行了描述，对此次地震的震中、烈度等问题进行了讨论，在此基础上绘出了此次地震的等震线示意图。认为该次地震的震中应在山西洪洞—赵城一带，震中烈度为Ⅹ度，震源深度为8km。     

Cyclic Sequences, Events and Evolution of the Sino-Korean Plate, with a Discussion on the Evolution of Molar-tooth Carbonates, Phosphorites and Source Rocks

This paper gives an account of the research that the authors conducted on the cyclic sequences, events and evolutionary history from Proterozoic to Meso-Cenozoic in the Sino-Korean plate based on the principle of the Cosmos-Earth System. The authors divided this plate into 20 super-cyclic or super-mega-cyclic periods and more than 100 Oort periods. The research focused on important sea flooding events, uplift interruption events, tilting movement events, molar-tooth carbonate events, thermal events, polarity reversal events, karst events, volcanic explosion events and storm events, as well as types of resource areas and paleotectonic evolution. By means of the isochronous theory of the Cosmos-Earth System periodicity and based on long-excentricity and periodicity, the authors elaborately studied the paleogeographic evolution of the aulacogen of the Sino-Korean plate, the oolitic beach platform formation, the development of foreland basin and continental rift valley basin, and reconstructed the evolution     

1991年大同—阳高5.8级地震震害评估

用抽样调查的方法,对大同SXDZ199103阳高1991年3月26日5.8级地震4～7度区的建筑物进行了调查。按倒塌、严重破坏、中等破坏、轻微破坏、基本完好,划分房屋的破坏程度,求出房屋的破坏比、户均房屋数、各烈度区总户数及总房间数。根据当地建筑材料的实际价格,工时费等确定了房屋的单价,又据国家地震局震害防御司颁布的震害评估细则,确定了建筑物破坏的损失比。利用破坏比、损失比、房屋单价、各烈度区房间总数对这次地震的经济损失进行了估算。     

Geochemical signature as paleoenvironmental markers in Holocene sediments of the Tinto River estuary (Southwestern Spain)

High absolute concentrations of metals associated to sulfide deposits located at the river source (Fe, Cu, Zn, Pb, Cd, and As) have been determined from the study of major and trace element concentrations in sediment samples obtained in two vibracores in the Tinto River estuary. In most cases, the enrichment factor (EF) for these metals is over 2. Cu, Zn and As have much higher EF, over 10 in surficial samples. Fe oxy-hydroxide precipitation in high-chlorinity zones and its scavenging effect on metals is the main control process on the chemical composition of sediment. Vertical evolution of the sedimentary and geochemical characteristics of the cores show that the estuary has undergone a process of progressive shallowness and a relative increase in acidic river water volume with respect to seawater. This effect has originated a downstream displacement of acid mixing processes affecting the estuary, which is reflected in higher metal concentrations in sediments of the outer zones of the system.     

Wave modelling - The state of the art

This paper is the product of the wave modelling community and it tries to make a picture of the present situation in this branch of science, exploring the previous and the most recent results and looking ahead towards the solution of the problems we presently face. Both theory and applications are considered.The many faces of the subject imply separate discussions. This is reflected into the single sections, seven of them, each dealing with a specific topic, the whole providing a broad and solid overview of the present state of the art. After an introduction framing the problem and the approach we followed, we deal in sequence with the following subjects: (Section) 2, generation by wind; 3, nonlinear interactions in deep water; 4, white-capping dissipation; 5, nonlinear interactions in shallow water; 6, dissipation at the sea bottom; 7, wave propagation; 8, numerics. The two final sections, 9 and 10, summarize the present situation from a general point of view and try to look at the future developments.