Due to the existence of a constant sum of constraints, the geochemical data is presented as the compositional data that has a closed number system. A closed number system is a dataset that includes several variables. The summation value of variables is constant, being equal to one. By calculating the correlation coefficient of a closed number system and comparing it with an open number system, ...

anomaly recognition has always been a prominent subject in preliminary geochemical explorations. among the regional geochemical data processing, there are a range of statistical and data mining techniques as well as different mapping methods, which serve as presentations of the outputs. the outlier’s values are of interest in the investigations where data are gathered under controlled condition...

The Capitanian (Late Guadalupian) Maokou Formation at Chaotian in northern Sichuan, South China, is composed mainly of shallow marine shelf carbonates deposited on the Tethyan side of South China. By detailed field mapping and scientific drilling, we newly found out unique fossil assemblages and a sharp lithologic change in the upper part of the Maokou Formation. The main part of the Maokou For...

To improve the understanding of formation and evolution sub-continental lithospheric mantle (SCLM) underlying South Australian Craton we have conducted a detailed petrological study on >3,000 xenocrysts from 13 kimberlites emplaced across craton. Pressure (P) temperature (T) estimates Cr diopside garnet been coupled with their chemical concentrations to constrain thickness chemo-lithostratigrap...

In spite of clear fan-shaped magnetic anomalies in the Eastern Algero-Balearic Basin (EABB), way how and time when seafloor spreading occurred are still debated. this work, a new seismo-stratigraphic interpretation based on deep-penetration reflection seismic data correlated to reduced-to-the-pole on-offshore litho-stratigraphic correlation Pre-Messinian units brings constraints its age mode op...

Abstract A detailed geological-depositional model and a clear understanding of the depositional elements reservoirs decrease drilling risks in development oil gas fields. Building an effective geological is challenge West El-Burullus (WEB) area because its complicated reservoir, which consists turbidite incised canyons system Pliocene shales intercalated with sands. These have occurred due to t...