Results 31 to 40 of about 1,350 (208)
, 1979 Lamprophyre dikes and the Leading Tickles dunite from Notre Dame Bay. Nfld., were sampled for a paleomagnetic study to define their age relationships and the tectonic implications of their emplacements.
P. L. Lapointe
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Geochemistry, Geophysics, Geosystems, 2023 Diamond exploration over the past decade has led to the discovery of a new province of kimberlitic pipes (the Webb Province) in the Gibson Desert of central Australia.
Z. J. Sudholz +9 more
doaj +1 more source
, 2016 An early Cretaceous potassic lamprophyre dyke, exposed near Rongjeng, East Garo Hills, Shillong plateau, north-eastern India, is a highly porphyritic rock with large phenocrysts of clinopyroxene, phlogopite, amphibole and olivine.
MELLUSO, LEONE +2 more
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Journal and proceedings of the Royal Society of New South Wales, 1966 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
A precise late Permian 40Ar/39Ar age for Central Iberian camptonitic lamprohyres
Geologica Acta, 2006 The Avila batholith of central Spain is composed, predominantly, of crustal-melt peraluminous granites cut by small-scale mafic alkaline bodies. Dating of the Gredos sector mafic camptonitic lamprophyre dykes was undertaken to constrain the Late Variscan
J.H. SCARROW +4 more
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Using whole rock and mineral chemistry for determining the origin of lamprophyres from Deh-Bazargan-Sarasiab 6 (north of erman city, Kerman Province) [PDF]
پترولوژی, 2018 In the north of Kerman city, between Deh-Bazargan and Sarasiab 6 villages and along the Koohbanan fault, several lamprophyric dykes have been intruded the Shemshak, Bidu and Hodjedk Formations.
Gholamreza Ghadami +4 more
doaj +1 more source
Геодинамика и тектонофизика, 2022 The ICP-MS determinations have been made on microelement content of ~650–640 Ma ultramafic lamprophyre-aillikite dikes and alkaline silicate rocks and carbonatites from the Bolshetagninsky ijolite-syenite massif, spatially overlapped in the northern Urik-
V. B. Savelieva +3 more
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Magmatic Storage Conditions of the Two Buttes Lamprophyre [PDF]
The study of the pre-eruptive conditions of lamprophyres, ultrapotassic intrusive igneous rocks, is limited but growing due to the primitive nature of these melts (Rock 1977; Mitchell, 1994).
Rose, Zuri
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New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.Improved satellite‐derived gravity data support updated interpretations and models of ancient plate boundaries and plate motions affecting Zealandia and West Antarctica. The models combine to confidently resolve hundreds of kilometres of Late Cretaceous–Eocene motion between the Pacific and Lord Howe plates, confirming that plate circuit constructions ...
Graeme Eagles
wiley +1 more source
Glimmeritic enclave in a lamprophyre from the Settupalle alkaline pluton, Eastern Ghats mobile belt
, 2010 A rare occurrence of glimmeritic (mica-rich) enclave — composed of abundant modal biotite, subordinate proportions of clinopyroxene and apatite, minor amounts of feldspar, carbonate and sphene — is reported from the lamprophyre of Settupalle alkaline ...
Rao, Chalapathi N. V. +1 more
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