One of the most continuous and best studied continental stratigraphic sections spanning the Paleocene-Eocene boundary is preserved on Polecat Bench in the northern Bighorn Basin. The mammalian biostratigraphy of Polecat Bench sediments has been well documented, and includes a major reorganization of faunas at or near the P-E boundary. To complement the existing biostratigraphy, we measured the ...

Abstract. Reconstructing Oligocene–Miocene paleoelevation contributes to our understanding of the evolutionary history European Alps and sheds light on geodynamic Earth surface processes involved in development Alpine topography. Despite being one most intensively explored mountain ranges worldwide, constraints elevation remain scarce. Here we present stable clumped isotope measurements provide...

The study of paleosols can be a vital tool in the paleoenvironmental interpretation of continental deposits because their physical and chemical characteristics are a reflection of variations in aspects of soil formation. Changes in paleosol characteristics can be used to determine the architecture and nature of parent material, paleosol maturity, topography, climate and soil-forming organisms (...

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Radiocarbon dating of Late deposits has shown that erosion of old organic materials and their redeposition in younger sediments ages that are too old. Also, the humid climate and leaching pedogenic environment of much of Tasmania translocation humic acids down profile through porous sediments. The humic acids may then be perched by impermeable clay or may be adsorbed/ absorbed by older clay and...

Transport and retention of colloid tracers were evaluated in standard petrographic thin sections, prepared from saprolite (Cr horizons) formed from fractured sedimentary rocks, using epi-fluorescence microscopy. Thin sections prepared from dismantled hydrogeological columns revealed four domains of macropores with apparent apertures ranging from 1 to 500 Am. Colloid retention occurred within bo...

Quaternary magnetic studies have provided the conceptual framework to bridge magnetic studies into ancient systems. In cases where environmental materials have been subjected to diagenetic alteration two questions come to mind: 1) What part of the magnetic signal is preserved in the rocks; and 2) can the preserved signal be used to infer/identify magnetic patterns that are characteristic of the...