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tholeiite

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tholeiite
tholeiite Petrogr. (ˈθəʊlɪaɪt) Also 9 tholeite. [ad. G. tholeiit (J. Steininger Geognostische Beschreibung des Landes zwischen der unteren Saar und dem Rheine: Nachträge (1841) 26), f. Tholei (now Tholey), name of a village in N.E. Saar, W. Germany: see -ite1.] Formerly, a basaltic rock containing p... Oxford English Dictionary
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Boninite
high Mg/(Mg + Fe) (0.55–0.83) Mantle-normal compatible elements Ni = 70–450 parts per million, Cr = 200–1800 ppm Ba, Sr, LREE enrichments compared to tholeiite Boninites can be derived from the peridotite residue of earlier arc tholeiite generation which is metasomatically enriched in LREE before boninite volcanism wikipedia.org
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Variolite
Variolites are mafic, igneous, and typically volcanic rocks, e.g. tholeiite, basalt or komatiite, that contain centimeter-scale spherical or globular structures wikipedia.org
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ensimatic
ensimatic, a. Geol. (ɛnsaɪˈmætɪk) [f. en-2 + simatic a.] Originating or occurring in or on simatic material; of or pertaining to such situations or phenomena.1949 [see ensialic a.]. 1973 Nature 21 Dec. 458/2 The West Philippine Basin is mesozoic or even older, or possibly represents a section of the... Oxford English Dictionary
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Tholeiitic magma series
The variety of basalt in the series was originally called tholeiite but the International Union of Geological Sciences recommends that tholeiitic basalt Type locality Tholeiite is named for its type locality near the municipality of Tholey, Saarland, Germany. wikipedia.org
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Ile des Cendres
Argon-argon dating has yielded ages of 800,000 years to 0 on olivine tholeiite; a recent eruption was recorded in 1923 which formed land that was later wikipedia.org
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Moctezuma volcanic field
There was a change in composition from tholeiite to alkali basalt over time, something observed in other volcanic centres of the Basin and Range Province wikipedia.org
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Rajmahal Traps
Lithology The Rajmahal volcanics are predominantly tholeiitic basalt, quartz tholeiite, olivine tholeiite and alkali basalt. wikipedia.org
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Tarso Toon
Later, felsic volcanic rocks were emplaced within the caldera and the Voon ignimbrite buried parts of the tholeiite. wikipedia.org
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Suprasubduction zone ophiolites and Archean tectonics - Semantic Scholar
Figure 1. Reconstructed igneous stratigraphy of the inferred Archean (thick) and Phanerozoic (thin) oceanic crust and their sequential (T1 to T2) petrogenetic evolution in suprasubduction zone (SSZ) environments. BIF—banded iron formation; IAT—island arc tholeiite. - "Suprasubduction zone ophiolites and Archean tectonics"
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Vatnaöldur
The mainly explosive eruptions emitted of tholeiite basalt. wikipedia.org
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Kookooligit Mountains
The volcanic cones are composed primarily of alkali olivine basalts, olivine tholeiite, and basanite. wikipedia.org
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Moppin Complex
Major element and oxygen isotope ratios suggest the protolith was tholeiite. wikipedia.org
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D'Entrecasteaux Ridge
Quaternary uplift and tilt, and indeed the next dredged sample to the north east has a poorly constrained age that is greater than 21 Ma and of primitive arc tholeiite wikipedia.org
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Agua Poca
Chemically, the lavas of Agua Poca are intra-plate alkali basalts, with some lavas transitioning in tholeiite. wikipedia.org
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