球颗玄武岩（variolite）是一种暗紫色的 喷出岩，属于 蛇绿岩 的组成。 球颗玄武岩呈暗紫红色，具球颗结构，球颗间隙充填长板状交织在一起的 斜长石。 球颗直径2-5mm，含量30% …

Variolites are mafic, igneous, and typically volcanic rocks, e.g. tholeiite, basalt or komatiite, that contain centimeter-scale spherical or globular structures, called varioles, in a fine-grained matrix.

An old term for basaltic rocks with a pock-marked appearance, composed of variolites (radial aggregates of feldspar and pyroxene microlites) in a microcrystalline or devitrified glassy base.

Variolites are a group of dark green basic igneous rocks that exhibit pale colored spots on weathered surfaces that give them a pockmarked appearance. Variolite Uses.

2002年5月15日 · Varioles are conspicuous in many Archaean mafic volcanic rocks—indeed the term variolite, designated for rocks containing abundant varioles is often applied. In general …

2018年9月1日 · The Hekpoort variolites show a narrow range of Mg numbers (Mg# = molar [MgO/(MgO + FeO*)]) between 57 and 60, whereas the regular Hekpoort lavas vary more …

球颗玄武岩（variolite）属于喷出岩，是蛇绿岩的组成之一。具球颗结构，气孔状构造、杏仁状构造、枕状构造。

The first type of variolite (hereafter the Kinojevis type) comprises lavas containing small spherical bodies (0,05 to 2 min in diameter) confined to the marginal zones of tholeiitic pil-

Variolites (Latin varius, "speckled, variegated") are a group of dark green basic igneous rocks that, especially on weathered surfaces, exhibit pale colored spots, or spherules, that give them …

Studies of minor intrusions and lavas from Norway have shown that in certain rocks this structure exists almost invariably. Certain types of lamprophyres and spilitic pillow lavas are particularly …