Abstract In this study, it is aimed to characterize the Early pliocene sandstone (EP-SD) and Late Miocene-Early Pliocene Mangaa reservoirs efficiency of their sealing cap rocks using petrographical petrophysical data these zones in northern Taranaki basin, New Zealand. The prospective potential were studied impregnated thin sections, XRD analysis, well log (self-potential, gamma-ray, sonic, den...

Reservoir characteristics and influences by diagenesis sedimentary environment of the Qingshuihe clastic formation Shinan area, Junggar Basin, are studied in this paper SEM, casting thin sections, X-ray diffraction, combining geology logging well data, providing a theoretical guide for further exploration development. The results show that Formation region interest was developed braided river f...

The Precambrian Dullstroom Formation of South Africa, which is predominantly composed of basaltic andesites interbedded with subordinate sedimentary and felsic volcanic strata, represents the ®rst phase of an extended period of magmatism that was responsible for the Bushveld Magmatic Province, including the extrusive Rooiberg Group and the intrusive Bushveld Complex. New geochemical and isotopi...

Spherules in sediments across the Cretaceous-Tertiary (K/T) transition in Central America and the Caribbean are commonly interpreted as ejecta from the Chicxulub impact on Yucatan. Their stratigraphic ages, however, are variable spanning from the late Maastrichtian to the early Danian. Figure 1. Locations of spherule-bearing K/T boundary sections in Central America, and the Caribbean. In northe...

Pore space characterisation is important in assessing the strength and hydraulic characteristics of rock. This paper proposes a new relationship to estimate porosity natural rocks using data from scanning electron microscope (SEM) pore crack analysis system (PCAS). The obtained results were compared with series conventional mercury intrusion porosimetry (MIP) experiments. Three different rocks,...