Hardgrounds represent synsedimentary cemented stratigraphic beds that form at or near the seafloor. Borings a key line of evidence for investigations hardground development and record evolution bioerosion boring organisms. The unequivocal identification borings is done through crosscutting relationship between proposed hard substrate, such as lithoclasts and/or shells, with morphological criter...

Automated scanning electron microscopic studies got exclusive acceptance in identification of various mineral phases; its classification and characterization based on their composition abundance semi quantitative manner. Nowadays, these techniques are adopted understanding poorly crystalline amorphous materials to reveal the actual assemblages. Primary phases five ferromanganese crust nodule sa...

The Macelj formation is an informal Eggenburgian-early Ottnangian lithostratigraphic unit that established in the area of Hrvatsko Zagorje Basin, which represented a marginal zone Early Miocene Central Paratethys Sea. Modern studies, as part Geologic Map Republic Croatia 1:50 000 project, yielded new data improves knowledge depositional and stratigraphic characteristics formation. sedimentologi...

The city of Chełm (Kholm in the past; today located on territory Poland) was founded by King Rus` (Ruthenia) Danylo (Daniel) Romanovych middle 13th century. Initially, it a small town with castle, but later Daniel rebuilt and turned into his capital. Unfortunately, buildings from century are preserved here only form archaeological remains foundations lower parts walls. great historical signific...

Diffuse reflectance spectra measured during shipboard core description with a hand-held Minolta spectrophotometer are reliable data for interpreting sediment composition. Factor analysis of these spectra indicates that only Glad Cling Wrap, a polyethylene food wrap, should be used to cover wet cores during measurement because it introduces substantially less noise into the spectra than other b...

The Tinajitas Limestone and Peñas Blancas Limestones are thin bioclastic carbonate units of Eocene age within the foreland fold and thrust belt of eastern Venezuela. They represent the only limestone deposits in the otherwise siliciclastic Cenozoic succession of the eastern Venezuelan shelf. The geometry of the carbonate units suggests a coastparallel, bar-like form, the particle population (la...

Macroids, cm-sized biogenically coated grains made of associations metazoans or protozoans, accumulate in some high-frequency sedimentary sequences the upper Hauterivian to lower Barremian Agua de la Mula Member Agrio Formation Neuquén Basin (northern Patagonia, Argentina). The macroids studied are sub-spheroidal and sub-discoidal shape, 2–3 cm diameter 1–2 height. Each macroid is characterised...

Bogor Trough in the West Java are typified by turbidity deposits with source mostly characterized volcanoclastic materials from southern area. The actually receipt sediment both south and continental north. But, discussions of sediments term composition temporal variation rare to be reported, especially This manuscript intends discuss detrital compositional depositional facies Neogene that deli...

Abstract. Smear slide petrography has been a standard technique during scientific ocean drilling expeditions to characterize sediment composition and classify types, but presentation of these percent estimates track downcore trends in become less frequent over the past 2 decades. We compare semi-quantitative smear physical property (natural gamma radiation, NGR) solid-phase geochemical (calcium...

Analyses of clay minerals within the Early Cretaceous Weald Basin, Southeast England reveal kaolinite, illite and chlorite as main detrital while glauconite smectite are subordinates. A kaolinite-rich assemblage which characterized sand-dominated Ashdown Tunbridge Wells Sand formations an illite-dominated associated mostly with Wadhurst Clay recognized. Kaolinite was enriched in during warm hum...