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  • noun

Words related to basalt

the commonest type of solidified lava

References in periodicals archive ?
It is required to make the shape of the basalt inclusions rather spherical than of flake shape by reducing the heat input during HVOF spray deposition and avoiding full melting.
Spillitic basalts (making up most outcrops) are dark gray with zeolites developed in randomly arranged veins and cavities A zeolite occurrence was found in a basalt quarry near Dunvegan where zeolites occur in scarce, elongated amygdales having considerable sizes up to 10 cm (Figure 3a) hosted by columnar basalts usually showing a red-brown weathering surface (Figure 3b), as observed in the small village of Dunans Gray spillitic basalts with zeolites developed in irregularly shaped cavities in contact with a floor of red laterite overlain by highly vesicular basalts without zeolites having a light brown weathering surface occur in the same village (Figure 3c).
Wedgwood''s black basalt body owed its richer colour to the addition of manganese, and was used in the production of exquisite ornamental wares such as vases, portrait medallions, plaques, library busts and candlesticks.
Statistics show that, the average tensile strength parallel to grain can reach 90MPa and the bending strength is about 90MPa for China's timber, while results show that the average tensile strength parallel to grain of Basalt Fiber can reach 940MPa, and the bending strength is 1011.
Years later, when Harry had built a lifetime's collection of Wedgwood, his black basalt pieces, including the smashed Homer vase now restored to its former glory, were given a beautiful 18th century finish.
Unmetamorphosed basalt and clastic sedimentary strata on the island of Grand Manan were recognized as Early Mesozoic, and similar to formations along the western coast of Nova Scotia, in descriptions by Chapman (1870), Powers (1916), Alcock (1948), Patrick (1964), Wade and Jansa (1994), and McHone (2001).
Basalt sintering is a processing technique used to manufacture density-controlled parts with appreciable abrasive resistance and high resistance to chemical agents from basalt powder by applying thermal energy.
Although many subdivisions of mid-ocean ridge basalt (MORB) chemical types have been proposed, ratios of incompatible trace elements are commonly used to classify MORB as depleted or normal (N), transitional (T), and enriched (E) types.
The basalt (solid lava) is mostly made of many very small crystals of feldspar and pyroxene minerals.
Even relatively fresh, basalt rocks formed by lava oozing from mid-ocean ridges are home to many microorganisms, says Katrina J.
Barkai 2005; Roshwalb 1981:21-95; Taute 1994), the southern Levantine production centres for bifacial tools of basalt were, until recently, unknown.
The results presented here demonstrate that the Alamo Creek Basalt is composed of a complex series of at least eight units which can be distinguished by hand specimen and mapping in the field and petrographic examination.
Whereas the gold experiment is still in progress, previous chemical studies of basalt, dacite, and pottery artifacts have demonstrated the power of chemical fingerprinting.
Inside, design treatments remain consistent with Arts and Crafts leanings, highlighted by local basalt stone fireplaces and plentiful wood detailing.
Surface (0-10 cm) samples from 7 highly weathered soils in tropical coastal Queensland were incubated for 3 months at room temperature and at field moisture capacity with basalt dust applied in 2 size fractions: [is less than] 150 [micro]m and 40 [micro]m.