نتایج جستجو برای: salt deposits
تعداد نتایج: 107902 فیلتر نتایج به سال:
We determined model ages of mare deposits on the farside of the Moon on the basis of the crater frequency distributions in 10-meter-resolution images obtained by the Terrain Camera on SELENE (Selenological and Engineering Explorer) (Kaguya). Most mare volcanism that formed mare deposits on the lunar farside ceased at approximately 3.0 billion years ago, suggesting that mare volcanism on the Moo...
Measuring value and interest rate risk in retail financial markets such as the market for consumer deposits has proven to be a very difficult problem for financial firms. Standard models of value and interest rate risk (duration), based on the competitive market paradigm, are inappropriate in retail markets characterized by sluggish price and quantity behavior. Although the penetration of sophi...
Efforts to identify alternative sources of energy have focused on extracting natural gas from vast shale deposits. The Marcellus Shale, located in western New York, Pennsylvania, and Ohio, is estimated to contain enough natural gas to supply the United States for the next 45 years. New drilling technology-horizontal drilling and high-volume hydraulic fracturing of shale (fracking)-has made gas ...
Episodic venting from deep overpressured layers has rarely been documented in sedimentary basins, so the pressure evolution leading to these cyclical phenomena is poorly understood at present. Using three-dimensional (3D) seismic data West Nile Deep Sea Fan, we interpret >480 fluid escape pipes within a region of prolific leakage across > 2 km thick sealing sequence salt and claystones. Within ...
Metastatic pulmonary calcification (MPC) is a rare pathological condition consisting of lung calcium salt deposits which commonly occurs in patients affected by chronic kidney disease probably for some abnormalities in calcium and phosphate metabolism. CT represents the technique of choice for detecting MPC findings including ground glass opacities and partially calcified nodules or consolidati...
Tumoral calcinosis is a rare clinical and histopathologic syndrome characterized by calcium salt deposits in periarticular soft tissue.1,2 Softtissue of juxta-articular upper limb (shoulder and elbow) and hip regions are the most commonly involved; however, spinal3-5 and temporomandibular joint6,7 involvement has also been reported. The extensor aspect of the joint is the usual site of the lesi...
Near surface groundwater contamination is a widespread problem. The potential for contamination of deep aquifers in such areas depends on the vertical hydraulic gradient as well as the extent and location of interconnection between the upper and lower aquifers. In alluvial~ sedimentary environments, the geologic units are typically weakly connected lenses or layers of high or low conductivity w...
As Australia and the world transition to net zero emissions, hydrogen will continue grow in importance as a clean energy source, with underground storage (UHS) expected be key component of this new industry. Salt (halite) caverns are preferred option for hydrogen, given their scale, stability high injection withdrawal rates they can support. The use salt storing gas is an established industry N...
Abstract Dew is a common form of water that deposits from saturated air on colder surfaces. Although presumably primordial Earth, its potential involvement in the origin life early replication has not been investigated detail. Here we report it can drive first stages Darwinian evolution for DNA and RNA, by periodically denaturing their structures at low temperatures second promoting long strand...
The sites of lead phosphate precipitation in mouse bladder smooth muscle incubated with adenosine triphosphate and lead nitrate were studied by electron microscopy. The media constituents and incubating conditions were independently varied so that we could determine optimal conditions for histochemical demonstration of ATPase activity in agranular endoplasmic reticulum. Specimens of glutaraldeh...
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