نتایج جستجو برای: salt deposits
تعداد نتایج: 107902 فیلتر نتایج به سال:
We report a hitherto unknown occurrence of ancient Neoproterozoic evaporite deposits from an allochthonous terrane in the Pan-African Gariep belt in Namibia. Low contents of Rb, Cs, Ba, Zr, Hf, Th, and U, flat chondrite-normalised rare earth element (REE) patterns, Sr/Sr ratios as low as 0.7075, Na–Cl–Br systematics of fluid inclusion leachates, and high dB values for stratiform tourmalinites, ...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Abstract The Qaidam basin in W China is an immense hyperarid intramontane with flat vast playas and salt lakes on the Qinghai-Tibet Plateau. central about 2800–2900 m a.s.l. elevation enclosed by mountain ranges reaching > 5800 Qilian Mountains 6200 eastern Kunlun Mountains. extensive of are covered gypsum or halite very subordinate additional solids. In this contribution we report chemical ...
Cutting samples from evaporite deposits of Member Two of Gachsaran Formation in well #1 at Ab-Teymure Oil Field have been studied by petrographic microscope, SEM with EDX attachment and XRD to identify the halite crystal shapes. This study led to recognition of three stages, including flooding, concentration and desiccation, for the formation of halite in salt pan. In the flooding stage, the fl...
یک سری پنج تایی لیگاند چهار دندانه سولفور دهنده: en-bis-dtcna = ethylenebisdithiocarbamate sodium salt pn-bis-dtcna = propylenebisdithiocarbamate sodium salt bu-bis-dtcna = butylenebisdithiocarbamate sodium salt he-bis-dtcna = hexylenebisdithiocarbamate sodium salt oc-bis-dtcna = octylenebisdithiocarbamate sodium salt تهیه شده است. این لیگاندها به روش های ir ,1h-nmr و تجزیه عنصری شن...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید