Integrated mineralogical and geochemical study of black shales in the Dakhla formation, Western Desert, Egypt

GEOLOGICAL, MINERALOGICAL AND GEOCHEMICAL CHARACTERISATION OF THE ILUHAGBA MARBLE DEPOSIT, SOUTHEASTERN ISANLU, CENTRAL NIGERIA: IMPLICATIONS FOR INDUSTRIAL APPLICATIONS

Marble, a metamorphosed limestone, is a critical raw material used in constructions, production of cement and soil improvement additives globally. In Nigeria, marble occurs as relict carbonate within the “Pan-African” (late Proterozoic) migmatite-gneiss-schist complex, such as the Isanlu region, central Nigeria. The ec...

GEOCHEMISTRY, WEATHERING CHARACTERISTICS, AND MINERALOGY OF THE RESIDUAL SOILS DEVELOPED FROM NOTOPURO TUFF, CENTRAL JAVA, INDONESIA

Rare Earth Element (REE) Geochemistry of the Cretaceous Tizkuh Formation Limestones, Northwestern Iran: Mineralogical Controls and Paleoenvironmental Implications

The limestones of the Tizkuh Formation, deposited along the southern margin of the Neo-Tethys Ocean during the Cretaceous, provide an opportunity to investigate REE behavior, depositional processes, and the extent to which primary marine geochemical features may have been retained despite post-depositional modification...

Sedimentology, Geochemistry, and Paleoenvironment of the Sandstones of Enagi Formation exposed at Kutigi, Northern Bida Basin, Nigeria

This study investigates the geology, geochemistry, and paleoenvironment of the Enagi Formation sandstones exposed at Kutigi in the Northern Bida Basin, North-Central Nigeria, using grain size analysis, thin-section petrography, X ray diffraction (XRD), and X-ray fluorescence (XRF). The sandstones exhibit mean grain siz...

Petrological and Geochemical Evaluation of Carbonatite in Obu Opkela, Edo State

This study presents an integrated geological, petrographic, and geochemical investigation of carbonate-rich rocks within the Obu–Okpella area of the Nigerian Basement Complex with the aim of determining their origin, petrogenesis, and economic significance. Detailed geological mapping reveals that the study area is...

Geochemical Evidence for Oxic Depositional Conditions in the Early Palaeogene Akli Formation, Barmer Basin, India

Integrated stable carbon isotope and geochemical analyses of the Palaeocene–Eocene Akli Formation, exposed at the Sonari Lignite Mine in the Barmer Basin, western India, reveal predominantly oxidising depositional conditions, interrupted by short-term reducing phases associated with lignite-bearing intervals during t...