II. Observations on Granite
نویسندگان
چکیده
منابع مشابه
Observations on Granite Weathering Phenomena, Mount Keinath, Northern Victoria Land, Antarctica
Rock varnish, erosional grooves, and well-developed cavernous weathering phenomena occur in close association on a small biotite-monzogranite nunatak in the Northern Foothills region, Northern Victoria Land, Antarctica. The grooves, similar in appearance to the ‘rinnenkarren’ described in the karst literature, are developed on steeply inclined (>35°) bedrock surfaces while the rock varnish occu...
متن کاملDynamic Strenth Measurements on Granite and Basalt
Small samples of rock, like those used in laboratory collision experiments, are known to be much stronger than bodies that are meters to hundreds of meters in size [1]. Specifically, the impactor energy per unit target mass needed to shatter the target decreases dramatically with increasing target size. This occurs because the strength of rock, like many other geological materials, depends stro...
متن کاملChemical weathering on the Carnmenellis granite
The behaviour of 25 major and trace elements, together with mineral changes, has been examined in a deep weathering profile on the Cammenellis granite, Cornwall. The bulk chemical and mineralogical composition of the regolith shows only minor changes from the parent rock indicating a low degree of chemical weathering. However, within the regolith marked differences occur between the fine fracti...
متن کاملLarge zenith angle observations with the high-resolution GRANITE III camera
The GRANITE III camera of the Whipple Cherenkov Telescope at the Fred Lawrence Whipple Observatory on Mount Hopkins, Arizona (2300 m a.s.l.) has the highest angular resolution of all cameras used on this telescope so far. The central region of the camera has 379 pixels with an individual angular diameter of 0.12. This makes the instrument especially suitable for observations of gamma-induced ai...
متن کاملEmanation from Granite Countertops
Emanation of radon ( 222 Rn) from granite countertops was measured using continuous and integrating radon monitors, and in air collected from encapsulated pieces of the countertops. A majority of the countertops emitted a measurable amount of radon. Although the granites contained the precursors, no thoron ( 220 Rn) emanation was detected. Gamma-ray spectroscopy was used to determine amounts of...
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ژورنال
عنوان ژورنال: Transactions of the Royal Society of Edinburgh
سال: 1794
ISSN: 0080-4568,2053-5945
DOI: 10.1017/s0080456800020305