Tohru Ohta

TL;DR: In this article, an alternative statistical empirical index of chemical weathering that is extracted by the principal component analysis (PCA) of a large dataset derived from unweathered igneous rocks and their weathering profiles is presented.

TL;DR: In this article, the authors used factor analysis to address geochemical responses to the sorting effect and provenance of Late Mesozoic sediments in the Nagato Basin, SW Japan.

TL;DR: In this paper, two geochemical diagrams for provenance analysis were utilized, which incorporate full consideration of compositional modifications resulting from weathering (MFW diagram) and hydraulic sorting processes (SiO2/Al2O3-Na2O/K2O diagram).

TL;DR: In this paper, chemical and mineral analyses of the Triassic to lowermost Jurassic mudstones from continental redbeds outcropping in the Internal Domains of the Betic-Rifian and Calabria-Peloritani chains have been used to infer the relationships between paleoclimatic conditions and paleoweathering processes during rifting of a continental crust block that finally detached from adjoining western Tethyan realms to form an independent microplate (Mesomediterranean Microplate) from Jurassic to lower Miocene time.

TL;DR: In this paper, the authors summarized the Palaeo-Mesoproterozoic supracrustal record of the Singhbhum Craton, discussed tectonosedimentary processes and discriminated between global and craton-specific events.