نتایج جستجو برای: litho

تعداد نتایج: 244  

2012
N. Cañellas-Boltà V. Rull A. Sáez O. Margalef S. Giralt J. J. Pueyo H. H. Birks

Macrofossil analysis of a composite 19 m long sediment core from Rano Raraku Lake (Easter Island) was related to litho-sedimentary and geochemical features of the sediment. Strong stratigraphical patterns are shown by indirect gradient analyses of the data. The good correspondence between the stratigraphical patterns derived from macrofossil (Correspondence Analysis) and sedimentary and geochem...

2007
K. A. Selby A. G. Brown

Three cores from two connected lakes in Central Ireland (Lough Kinale and Derragh Lough) were investigated using diatom analysis to establish the Holocene development of the lacustrine system, any local variations within the lakes and any anthropogenic influences. The study area was situated in a lowland location and the lakes were shallow, unstratified and interconnected. Litho-and bio-stratig...

Journal: :Geocarto International 2022

This work presents a sinkhole susceptibility and risk assessment mapping in Guidonia-Bagni di Tivoli plain (Italy), travertine sinkhole-prone area where sudden occurrences of sinkholes have happened past recent times. We collected point-like inventory we considered series different sinkhole-controlling precursory factors over the study area, related to its geo-litho-hydrological setting terrain...

Journal: :Groundwater for Sustainable Development 2021

Policies surrounding energy development are frequently implemented in response to known or perceived problems. South Africa is a unique position develop prospective policies that build on knowledge gained from elsewhere. This paper provides analysis of hydrogeological risk pathways and vulnerability attributes advance anticipated shale gas operations the Karoo Basin Africa. The ‘hazard-pathways...

Journal: :Global Journal of Geological Sciences 2021

Vertical Electrical Sounding (VES) and pumping test (constant discharge recovery test) was carried out in parts of Boki Local Government Area to evaluate the groundwater potential, using aquifer characteristics study area. Sixteen (16) VES point employed for this Schlumberger array, with a maximum spread 400- 600m. The stimulated result from field data shows 3-5 layers resistivity model followi...

Journal: :Endoscopy 2015
Hiroshi Kawakami Masaki Kuwatani Yoshimasa Kubota Shuhei Kawahata Kimitoshi Kubo Kazumichi Kawakubo Naoya Sakamoto

Endoscopic ultrasound (EUS)-guided antegrade treatment for biliary disorders was developed for patientswith an altered anatomy [1–5]. This report describes a case of successful EUS-guided bile duct stone (BDS) treatment followed by direct peroral transjejunal-hepatic cholangioscopy in a patient with Roux-en-Y reconstruction. An 80-year-old woman with a BDS and a history of total gastrectomy wit...

Journal: :Journal of Marine Science and Engineering 2023

The current study uses an integrated lithofacies, optical microscopy, and scanning electron microscopy (SEM) analysis to investigate the sedimentary processes, depositional architecture, reservoir rock potential of Tredian Formation’s (Mid-Triassic) mixed siliciclastic carbonate succession in Salt Trans-Indus Ranges. formation has been divided litho-stratigraphically into two components: lower ...

Journal: :Journal of Marine Science and Engineering 2022

Field investigation, biostratigraphic, paleoecological, and sedimentary microfacies analyses, as well diagenetic processes characterization, were carried out in the Epirus region (Western Ionian Basin) to define depositional environments further decipher history of Late Cretaceous–Early Paleocene carbonate succession western continental Greece. Planktonic foraminiferal biostratigraphy studied c...

The Zarshuran Carlin-like gold deposit is located at the Takab Metallogenic belt in the northern part of the Sanandaj-Sirjan zone, NW Iran. The high-grade ore bodies are mainly hosted by black shale and cream to gray massive limestone along the NNE-trending extensional fault/fracture zones. The aim of this investigation was to determine and separate the gold mineralized stages based on the surf...

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