Sentence examples for composed of basalt from inspiring English sources
The sheeted dikes and the majority of extrusive rocks in Kizildag are composed of basalt, basaltic andesite and andesite with relatively low La/SmN (0.5 0.7), low MgO (7 9 wt.%) and high TiO2 (0.7 1.0 wt.%) and exhibit high Dy/YbN ratios.
Shield volcanoes are usually composed of basalt.
The ocean floor is composed of basalt in various stages of alteration.
Samples of lunar rock and soil brought back by Apollo astronauts proved that the maria are composed of basalt formed from surface lava flows that later congealed.
Even rarer in the Franciscan is OPS composed of basalt overlain successively by limestone, chert, and clastic rocks.
Lack of literature and rapid development of infrastructure in central region of India calls for a need to characterize the mechanical behaviour of rocks in Deccan trap region which is mainly composed of Basalt.
Deccan plateau is composed of basalts of Deccan Traps which are fractured and jointed having undulated topography with dendritic-to-sub-dendritic drainage pattern, low-to-moderate drainage density; whereas, alluvial plains constitute gravel, sand silt and clay-sized unconsolidated material over a flat land surface, illustrated by low drainage density with high infiltration rate.
The surface of Mars is primarily composed of tholeiitic basalt, although parts are more silica-rich than typical basalt and may be similar to andesitic rocks on Earth or silica glass.
Younger and geologically distinct from the nearby Appalachian Mountains and surrounding uplands, the Metacomet Ridge is composed of volcanic basalt, also known as trap rock, and sedimentary rock in faulted and tilted layers many hundreds of feet thick.
The sides and tops of the pinnacles are composed of columnar basalt, and gorgonian corals grow on the steep walls.
The island, composed of flows of basalt lava lying horizontally and overlaid in most places by lateritic soil, rises precipitously (with some cliffs reaching heights of more than 300 feet [90 m] above sea level) from an extensive submarine ridge.
