caa a22 4500 445814519 CHVBK 20180317145221.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10040-010-0626-9 doi (NATIONALLICENCE)springer-10.1007/s10040-010-0626-9 Wood Warren Department of Geological Sciences, Michigan State University, 206 Natural Sciences Building, 48824, East Lansing, MI, USA aut Source of paleo-groundwater in the Emirate of Abu Dhabi, United Arab Emirates: evidence from unusual oxygen and deuterium isotope data [Elektronische Daten] [Warren Wood] Origine des eaux souterraines anciennes dans l'émirat d'Abou Dabi, Emirats Arabes Unis: informations apportées par des teneurs en isotopes de l'oxygène et du deutérium inhabituelles Fuentes de aguas subterráneas fósiles en el Emirato de Abu Dhabi, Emiratos Árabes Unidos: evidencia de datos inusuales de isótopos de deuterio y oxígeno 阿拉伯联合酋长国的阿布扎比酋长国的古地下水来源: 依据异常的氢氧同位素值 Origem de paleo-águas subterrâneas no Emirado de Abu Dhabi, Emirados Árabes Unidos: evidência a partir de dados invulgares dos isótopos de oxigénio e deutério Paleo-groundwaters of 6000years BP from the Liwa water-table sand dune aquifer in the Rub al Khali and the Gachsaran artesian carbonate aquifer, on the coast of the Emirate of Abu Dhabi (UAE), exhibit normal δ2H/δ18O slopes, modest δ18O increases, and large negative deuterium excess "d” (Liwa aquifer: 2.19‰ VSMOW and d = -15; Gachsaran aquifer: 3.16‰ VSMOW and d = -28) compared to local Shamal precipitation (0.05‰ VSMOW and d = 7). This unusual isotopic signature is hypothesized to result from re-evaporation of continental runoff to the Red Sea catchment basin. It is postulated that this continental water flowed onto the surface of the Indian Ocean providing a moisture source for the monsoon that dominated precipitation during this, the last wet period in the area from 5000 to 9000 BP. Carbonate precipitation, forming speleothems, travertines, tufas, lacustrine, and capillary-zone deposits, subsequently record this δ18O isotopic signature. This rock record is thus dominated by the water source, rather than environmental conditions of deposition normally assumed to control the rock δ18O isotopic signature. As a consequence, re-evaluation of paleo-climateδ18O data from the rock record may be necessary for this time period in southern Arabia. US Government, 2010 Paleohydrology nationallicence Stable isotopes nationallicence Groundwater age nationallicence United Arab Emirates nationallicence Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 155-161 1431-2174 19:1<155 2011 19 10040 https://doi.org/10.1007/s10040-010-0626-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0626-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wood Warren Department of Geological Sciences, Michigan State University, 206 Natural Sciences Building, 48824, East Lansing, MI, USA aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 155-161 1431-2174 19:1<155 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer