| 1. | If meteoric water does not evaporate or run overland, it may seep directly into the ground . 如果大气水不从陆地蒸发和流走的话,就可能直接渗入地下。 |
| 2. | Ore - forming fluid rooted in the deep crust mixed with meteoric water 成矿流体来源于地壳深部和后期大气降水的加入。 |
| 3. | Standard test method for column percolation extraction of mine rock by the meteoric water mobility procedure 用大气水流动法进行矿石的柱渗透式提取的标准试验方法 |
| 4. | The evidence of h , o isotope indicates that ore - forming fluid at early stage of ore - forming processes originated from magmatic water but later there was the mixing with groundwater or meteoric water 流体包裹体的h 、 o同位素研究表明,银山矿床成矿流体早期为岩浆热液,晚期掺入较多大气降水。 |
| 5. | According to the environmental isotope dates , the paper establishes the local meteoric water line ( lmwl ) , analyzes the distribution characteristics of environmental isotope in different water body and its influence factors 根据各水体的环境同位素资料,建立了西安地区雨水线方程,分析了关中盆地各水体的环境同位素分布特征及其影响因素。 |
| 6. | The occurrence and intensity of biodegradation on oils in daerqi oilfield is not only determined by burial depth and exposure to meteoric water , but also related to the group composition and physical feature of the oil 达尔其油田油层生物降解作用不仅与油藏深度和地表水连通性有关,也与原油物性和族组成有关。第二类原油虽然油层浅,但未遭受生物降解作用。 |
| 7. | It belongs to nacl - h2o - co2 system . the ore - forming element assemblage is as - sb - cu - ni - u with high contents of as and sb . the stable isotope data show the metallogenic fluid comes from the mixture of magmatic water with meteoric water and stratum water 流体中成矿元素组合为as - sb - cu - ni - u ,总体上具较高的sb , as含量;稳定同位素特征表明成矿溶液主要来自岩浆水与大气降水、沉积盆地地层水的混合。 |
| 8. | The ore - forming material is mostly from volcanic rock , and sub volcanic rock provides the main thermal and some mineral materials . the ore - forming fluid is from meteoric water . as a result , it should be a kind of adularia - sericite type of epithermal gold deposit 成矿物质主要来自矿区火山岩围岩,次火山岩提供了主要热源和部分矿源,成矿流体来自大气降水,矿床成因类型为低硫化物冰长石?绢云母型浅成低温热液型金矿。 |
| 9. | Several lines of evidence , including studies on geochemistry of trace elements and rare earth elements , isotopes ( s , c , o , d , and pb ) , and fluid inclusions , suggest that the main ore - forming materials were scavenged from the contemporaneous sediments and that the fluids were predominantly derived from deep circulated basin brines , recharged by meteoric water , and ancient seawater 微量元素、稀土元素、同位素( s 、 c 、 o 、 d 、 pb )和流体包裹体特征表明成矿物质来源于同沉积的赋矿围岩,成矿流体系大气降水为主要补给源的深循环盆地卤水和与沉积物发生了同位素交换的埋藏古海水。 |
| 10. | The paper discusses dynamical conditions of the supercritical ore - forming fluid system based on study of regional geological background and analyses of physiochemical conditions of ore - forming process and puts forth the ore - forming mechanism : upper mantle uplift - mingling of meteoric water and magmatic hydrothermal fluid separated from acidic magma under tensile or transitional tensile environment - water / rock reaction - transportation - chemical coupling ore precipitation 在分析超临界成矿流体系统形成的区域地质背景和研究成矿物理化学条件的基础上,探讨了超临界成矿流体系统形成的动力学条件,提出该系统的成矿机理:与燕山晚期酸性火山侵入岩浆有关的金铜矿床是在上地慢隆起、张性或向张性过渡背景下形成的,酸性岩浆经熔体流体分离作用形成的岩浆热液与大气降水混合,经水岩作用等复杂的输运和化学反应耦合过程的动力学产物。 |