Procedia Earth and Planetary Science最新文献_第10页

Hydrochemical and Isotopic (δ2H, δ18O, 3H) Characterization of Fracture Water in Crystalline Rock (Grimsel, Switzerland) 瑞士Grimsel结晶岩裂缝水的水化学和同位素(δ2H， δ18O, 3H)表征

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2016.12.187

R. Schneeberger, U. Mäder, H. Waber

引用次数: 3

Fe-Si Oxides Tracing the Ongoing Low-T° Hydrothermal Alteration of Exhumed Serpentinites at the Ultraslow-spreading Southwest Indian Ridge 铁硅氧化物示踪西南印度脊超低扩张蛇纹岩低t度热液蚀变[j]

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/j.proeps.2016.12.055

A.M. Karpoff , D. Sauter , M. Cannat , M. Ulrich , G. Manatschal

引用次数: 5

Evolution Assessment of Soils Contaminated by Roasted Pyrite Wastes 焙烧黄铁矿废物污染土壤的演变评价

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2016.12.109

C. Domènech, À. Canals, A. Soler, A. Sabanès, A. Dumestre

引用次数: 6

Hydrochemical Fluxes and Bedrock Chemistry in three Contrasting Catchments Underlain by Felsic, Mafic and Ultramafic Rocks 三种不同集水区的水化学通量和基岩化学——由长英质、镁铁质和超镁铁质岩石构成

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2016.12.136

P. Krám, J. Čuřík, F. Veselovský, Oldřich Myška, J. Hruska, V. Štědrá, T. Jarchovský, H. Buss, T. Chuman

引用次数: 13

Composition and Origin of Mine Water at Zlatna Gold Mining Area (Apuseni Mountains, Romania) 罗马尼亚阿普塞尼山脉Zlatna金矿矿区矿水组成及成因研究

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/j.proeps.2016.12.018

Delia Cristina Papp , Ioan Cociuba , Călin Baciu , Alexandra Cozma

{"title":"Composition and Origin of Mine Water at Zlatna Gold Mining Area (Apuseni Mountains, Romania)","authors":"Delia Cristina Papp , Ioan Cociuba , Călin Baciu , Alexandra Cozma","doi":"10.1016/j.proeps.2016.12.018","DOIUrl":"10.1016/j.proeps.2016.12.018","url":null,"abstract":"<div><p>Hydrochemical and isotopic characterization of mine water having connections with groundwater and surface water at Zlatna gold mining area (Apuseni Mountains, Romania) was performed to provide insights on mine site emissions with the surrounding environment after the cessation of mining operations. The mine water coming into direct contact with mineralization is more acidic than the mine water that only interacts with the host rock. Light isotopic composition of most mine water suggests snowmelt and high altitude precipitations as the main source of recharge. Linear correlation between δD and δ<sup>18</sup>O values indicates that all water sources belong to the meteoric cycle. For most mine water sources no significant seasonal variations of the δD, δ<sup>18</sup>O, pH and TDS values was recorded, indicating well-mixed underground systems and slow flow recharge pathways. Other mine water sources show seasonal variations of these parameters suggesting continuous recharge of mine water and a fast underground circulation. No relevant contamination of springs and phreatic water by mine water could be revealed, suggesting different underground pathways for the two types of water. On the contrary, running water is contaminated by mine water and the negative effects of acid mine drainage occur mainly in the summer months when the debit of the running water decreases.</p></div>","PeriodicalId":101039,"journal":{"name":"Procedia Earth and Planetary Science","volume":"17 ","pages":"Pages 37-40"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.proeps.2016.12.018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78596742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Assessment of Groundwater Intrinsic Vulnerability to Pollution in the Pre-Saharan Areas - The Case of the Tafilalet Plain (Southeast Morocco) 撒哈拉前地区地下水污染内在脆弱性评价——以Tafilalet平原(摩洛哥东南部)为例

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2016.12.151

Said Baki, M. Hilali, I. Kacimi, N. Kassou, Nordine Nouiyti, Abdellah Bahassi

引用次数: 19

Mineralogical Evidence of Hydrothermal Alteration in Cabeço de Vide Mafic – Ultramafic Complex, Central Portugal 葡萄牙中部cabeo de Vide基性-超基性杂岩热液蚀变的矿物学证据

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2017.01.025

F. Rocha, C. Costa, J. Marques

引用次数: 0

Experimental Study of Dissolution Kinetics of K-feldspar as a Function of Crystal Structure Anisotropy under Hydrothermal Conditions 热液条件下k -长石晶体结构各向异性对溶蚀动力学影响的实验研究

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/j.proeps.2016.12.042

M. Pollet-Villard , D. Daval , P. Ackerer , G.D. Saldi , K.G. Knauss , B. Wild , B. Fritz

{"title":"Experimental Study of Dissolution Kinetics of K-feldspar as a Function of Crystal Structure Anisotropy under Hydrothermal Conditions","authors":"M. Pollet-Villard , D. Daval , P. Ackerer , G.D. Saldi , K.G. Knauss , B. Wild , B. Fritz","doi":"10.1016/j.proeps.2016.12.042","DOIUrl":"10.1016/j.proeps.2016.12.042","url":null,"abstract":"<div><p>We present the results of an experimental study of the effect of anisotropy on the kinetics of K-Feldspar dissolution under hydrothermal conditions as encountered in the Soultz-sous-Forêts enhanced geothermal system. We try to quantify the impact of K-feldspar anisotropy on dissolution rates in order to develop a more comprehensive model of the evolution of the reactive surface of silicate minerals in order to propose alternate kinetic rate laws to be implemented into water-rock interaction models and reactive transport codes. Our results evidence a relation between K-spar dissolution rate and the Gibbs free energy of reaction (Δ<em>G</em><sub><em>r</em></sub>) which clearly differs from the transition state theory usually implemented into geochemical codes: it depends on the crystallographic orientation of K-spar mineral with significant differences between the different crystal faces. As for the far-from-equilibrium dissolution rate, this result highlights that using a unique theoretical rate law to describe dissolution rate as a function of Δ<em>G</em><sub><em>r</em></sub> remains highly questionable. These results are very important for our challenge of understanding and modelling the dissolution mechanisms and they evidence that the dissolution anisotropy plays a fundamental role in these mechanisms.</p></div>","PeriodicalId":101039,"journal":{"name":"Procedia Earth and Planetary Science","volume":"17 ","pages":"Pages 165-168"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.proeps.2016.12.042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75386249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Industrial Mercury Pollution in a Mountain Valley: A Combined Geophysical and Geochemical Study 某山谷工业汞污染:地球物理和地球化学综合研究

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/j.proeps.2016.12.040

L. Charlet , F. Blancho , T. Bonnet , S. Garambois , P. Boivin , T. Ferber , D. Tisserand , S. Guedron

{"title":"Industrial Mercury Pollution in a Mountain Valley: A Combined Geophysical and Geochemical Study","authors":"L. Charlet , F. Blancho , T. Bonnet , S. Garambois , P. Boivin , T. Ferber , D. Tisserand , S. Guedron","doi":"10.1016/j.proeps.2016.12.040","DOIUrl":"10.1016/j.proeps.2016.12.040","url":null,"abstract":"<div><p>Many alpine valleys have inherited strong industrial remnants. Chemical and metallurgical companies were set up in these narrow glacial valleys at the beginning of the industrial era to benefit from cheap labor and hydroelectricity. Regulations concerning solid and liquid waste handling did not exist, and contaminated sediments were often used as soil amendment to improve soil texture, spreading the contamination, which local Authorities have now to deal with.</p><p>In the present study we report on mercury contamination in the narrow alpine valley known as canton of Valais valley. Waste materials and contaminated sediments were deposited in the valley for many years. An electromagnetic conductivity survey allowed a definitive mapping of the extent of such practices because an EM conductivity contrast was clearly detectable between the added silty-clay material and the natural silty-sand soil. High EM conductivity correlates quite well with high Hg surface soil content. Cores drilled at hotspots and along the canal were analyzed for total mercury, methyl mercury, and core sedimentary features recorded. While up to 70cm thick, dredged, Hg-contaminated material was found to lay above the original sandy soil in housing areas, the mercury contamination extends down to 1.5 m depth, i.e. down to the water table, probably caused by the high sediment material organic content (OC), and OC-Hg enhanced transport. Methylation reductive conditions were observed, together with high MeHg relative abundance ([MeHg]/ [HgT]> 0.1%), in two environments, namely the zone of fluctuating water table and the canal water/sediment interface. Groundwater quality was not impacted, because of large groundwater fluxes observed in these glacial alpine valleys.</p></div>","PeriodicalId":101039,"journal":{"name":"Procedia Earth and Planetary Science","volume":"17 ","pages":"Pages 77-80"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.proeps.2016.12.040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75559154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Interaction of Ions with Hydrated Clay Surfaces: Computational Molecular Modeling for Nuclear Waste Disposal Applications 离子与水合粘土表面的相互作用:核废料处理应用的计算分子模型

Procedia Earth and Planetary Science Pub Date : 2017-01-01 DOI: 10.1016/J.PROEPS.2016.12.144

A. Kalinichev, Narasimhan Loganathan, B. F. N. Wakou, Zongyuan Chen

引用次数: 10