Mineral Elemental Response to the Evolution of Terrestrial Brine Faultedbasin:a case study in the Paleogene of Well Haoke1, Dongying Sag

Key words: 
• response of mineral element /
• ratio of mineral element /
• evolution of basin /
• brine lake /
• Dongying Sag

Abstract: In order to investigate the relation between the distribution of mineral elements and sedimentary environment including the salinity and depth of water body, and the evolution of lakebasin, emission spectrograph of inductive coupling plasma was used to intensively testing and dissection the content of mineral elements in the deep death of the Paleogene from the Well Haoke1 in Dongying sag. The involved formation contained the Member 3, Member 4 of Shahejie Formation and Kongdian Formation, in which the main source rocks distributed. The results demonstrate that: in the oxidized sedimentary environment of shallow shorelacustrine the content of Sr, Ca and the parameters of Ca/Mg, Sr/Ba, Sr/Ca have low value response, the content of Fe, Al, Ba, V and the parameter of (Fe+Al)/(Ca+Mg) have high value response; in the brinelake sedimentary environment the content of Mn, Ba,V and the parameters of V/Ni, (Fe+Al)/(Ca+Mg) have low value response, the content of Sr, Na and the parameters of Sr/Ba, Fe/Mn, Sr/Ca have high value response; in the reductive brackish sedimentary environment of halfdeep lacustrine lake the content of K, Na, Fe and the parameters of Fe/Mn have low value response, the content of Ca, Mn have high value response. In the cosedimentary environment of saline deposit and mud of the middle part of Sha4 Formation, the distribution of mineral elements has obvious characteristics of discretion and fluctuation. Sr/Ba, Sr/Ca have obvious high value response in the saline lake and are verified to be good parameters for salinity of waterbody. The parameters of Fe/Mn and (Fe+Al)/(Ca+Mg) are approved to be good parameters for the depth of waterbody and their value increased with deepening of waterbody. The parameters abovementioned should be applied and synthetically analyzed to determine characteristics of geological factors for the parameters were influenced by many geological factors including sedimentary environment and lithologic character. 