نتایج جستجو برای: mixed clay core

تعداد نتایج: 451927  

2013
Tracy A. Nichols Terry R. Spraker Tara D. Rigg Crystal Meyerett-Reid Clare Hoover Brady Michel Jifeng Bian Edward Hoover Thomas Gidlewski Aru Balachandran Katherine O'Rourke Glenn C. Telling Richard Bowen Mark D. Zabel Kurt C. VerCauteren

Chronic wasting disease (CWD), the only known prion disease endemic in wildlife, is a persistent problem in both wild and captive North American cervid populations. This disease continues to spread and cases are found in new areas each year. Indirect transmission can occur via the environment and is thought to occur by the oral and/or intranasal route. Oral transmission has been experimentally ...

2006
M. H. MOSSMAN

USE of a platy internal standard that will orient to the same degree as clay minerals preserves the relative diffraction intensities between the basal reflections from the platy components, regardless of degree of orientation. The method is illustrated with basic zinc chloride and pyrophyllite as the internal standards for quantitative clay mineral anMysis in the systems kaolinite-liVid illite ...

Journal: :Anais da Academia Brasileira de Ciencias 2006
Liane M Calarge Alain Meunier Bruno Lanson Milton L L Formoso

A Permian bentonite deposit at Melo, Uruguay is composed of a calcite-cemented sandstone containing clay pseudomorphs of glass shards (0-0.50 m) overlying a pink massive clay deposit (0.50-2.10 m). The massive bed is composed of two layers containing quartz and smectite or pure smectite respectively. The smectite is remarkably homogeneous throughout the profile: it is a complex mixed layer comp...

Journal: :Applied sciences 2022

Earth-dam failure starts with cracking in the clay core, and this is not easy to detect prevent. Therefore, swellable a feasible solution, which helps close cracks automatically based on self-healing process. The presented study utilizes experimental procedures analyze swelling behavior of fine-grained clayey soils prevent structural regarding crack generations. In regard, materials were modifi...

Journal: :Journal of clinical pathology 1992
A P Gibb D M Edmond

AIMS To determine whether antibody to lipopolysaccharide-core (LPS-core) antigen is an important component of the antibody, detected by mixed heat-killed coliform antigen, in urine from patients with suspected urinary tract infection. METHODS LPS-core antigen and mixed heat-killed coliform antigen were used in an enzyme linked immunosorbent assay (ELISA) to measure IgG antibody in midstream u...

Journal: :Journal of the Mineralogical Society of Japan 1957

1998
Federica Tamburini Thierry Adatte Karl B. Föllmi

Green clay layers are reported from the Pliocene–Holocene intervals in five of the six sites drilled in the South China Sea (SCS) during Leg 184. Centimeter-scale discrete, discontinuous, and bioturbated layers, constituted by stiff and porous green clays, were observed, sometimes associated with iron sulfides and pyrite. Detailed mineralogical and geochemical analyses indicate that they differ...

2016
Leah D Brandt Christopher H House

Sediments within the Okinawa back-arc basin overlay a subsurface hydrothermal network, creating intense temperature gradients with sediment depth and potential limits for microbial diversity. We investigated taxonomic changes across 45 m of recovered core with a temperature gradient of 3°C/m from the dynamic Iheya North Hydrothermal System. The interval transitions sharply from low-temperature ...

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