商州红崖山古铜矿遗址位置及找矿意义

近四十年里,陕西已出土大批先秦时期青铜器皿,可是,至今未发现象样的古铜矿采冶遗址。本文根据史籍中有关商州红崖山及铜矿冶的有关记载,结合现代地质科研资料,分析了唐代红崖冶、宋代阜民监的位置,预测了红崖山古冶炼址及采矿址的地点,对北宋时代龙涡银场和锡定铅场的位置也做了预测。这对陕西考古和古代科技史研究具有重要意义。此外,受古矿冶启发,还对区内寻找铜、银、铅、锡矿提出见解。     

古代秦巴地区银矿分布信息及成矿区划

本文收集正史及有关地理著作中的历史信息,列出秦巴山系所经甘、陕,豫、皖四省境内产银县39个和产铅县12个。分析古代银(铅)分布特点,结合现代地质科研成果,划分出三大银矿成矿带、两个银矿成矿亚带和七个银矿成矿区。简述了赋矿地层、岩性、银矿类型等特征,并对该区找银提出见解。     

Seasonal variation in the toxicity of sediment-associated contaminants in Corpus Christi Bay, TX

Seasonal variation in pore water and sediment-water interface (SWI) toxicity at two sites of suspected contamination was investigated using sea urchin embryological development (Arbacia punctulata) and copepod hatching success (Schizopera knabeni). Site S1, located inside a marina, was fine-grained and S2, located near a neighboring stormwater outfall, was sandy. Both sites were cored in summer and winter, along with reference sites of equivalent grain sizes. Whereas the muddy contaminated site displayed a slight decrease in sea urchin toxicity from summer to winter, pore water from the sandy contaminated site exhibited an increase in sea urchin toxicity. The sandy sites displayed slight toxicity increase to copepod hatching success in winter, which occurred in the SWI of S2 and in the pore water from the reference site, R2, where it coincided with sedimentation. Cu was the most prevalent metal in the sediment samples. Although Cu concentration increased in the whole sediments and pore waters from summer to winter, its concentration in overlying SWI exposure decreased from summer to winter. Organic compounds exhibited opposite behavior, with smaller variety identified in the winter pore water samples, but more chemicals detected in the SWI samples in winter.     

地球的起源

根据目前太阳系的其它星系的观测资料，结合高压物性测定，深部地球物理和计算机模拟结果，较为详细地论述了地球的吸积模式及其早期大气圈的演化方式。     

灾害地质研究不应忽视文史资料

我国有悠久的历史,有灿烂的古代文化.充分利用数千年间积累的有关地质灾害方面的信息,即使在科技发展日新月异的现代,亦有不可低估的重要意义.     

近代中国锑矿开发以湖南最盛

我国光绪年间至民国初期(1875—1920)锑矿开发概貌,共涉及现行政区划6个省。本文对湖南等主要省的锑矿业,既扼要地探讨历史沿革,义尽量地汇集具体产锑地名及有关地质信息,展现出三条重要的锑矿带。同时,介绍了外国资本争夺锑矿与国内官商锑矿机构及冶炼业。对了解和研究近代中国锑矿开发史,系统地总结现代中国锑矿床的由来及地质找矿信息,都有一定的意义。     

中国近代银铅矿开发概貌

总结了我国清末至民国初期（１８４０－１９２０年）长达８０年的银铅矿开发概貌，按现行政区划共涉及１４个省。对各省的银铅矿．既扼要探讨历史沿革，又尽量地汇集具体产银产铅地名及有关地质矿产信息，对了解和研究近代中国银矿开发史，系统地总结现代中国银铅矿床的由来，都有一定的意义。     

消减杂岩中沉积物与沉积环境

板块运动包含板块之间的运动和板块内部的运动两个方面。板块与板块以碰撞—俯冲相遇时,俯冲作用推动载体向另一板块下消亡,俯冲板块便发生消减现象,未完全消减的残留载体或混杂堆积体,成为另一板块增生时的楔体,沿消减带成线状出露,便构成所谓消减杂岩(subduction complex)。研究消减杂岩中的沉积物,对说明俯冲位置和蛇绿岩性质有重要意义。一、消减作用及消减杂岩中沉积物产地分类大洋板块向大陆板块俯冲消亡时,发生消减作用。洋壳及其沉积盖层成了板块运动加工的原料,有的变为消减生成物,在大陆一侧造成中酸性岩浆活动;有的变为消减改造物,加入到高压低温变质带中;有的变为消减转化物,重返地幔开始新的对流;有的变为消减残留物,以构造楔片、混杂堆积形式出现。随着板块理论在我国的普及,地学研究出现了“板块热”。但是,人们在消减残留物的研究上则侧重