Web Results

en.wikipedia.org/wiki/Magmatic_activity

In geology magmatic activity or igneous activity is the production, intrusion and extrusion of magma or lava. Evidence for magmatic activity is usually found in the  ...

www.nature.com/ngeo/journal/v6/n12/full/ngeo1994.html

Oct 4, 2013 ... Felsic rocks have not been identified on Mars, a planet that lacks plate tectonics to drive the magmatic processes that lead to evolved silica-rich ...

www.sciencedirect.com/science/article/pii/0037073870900242

Magmatic activity in the Mesozoic-Tertiary geosyncline of the Northern Apennines is mainly characterized by two stages: one is of basic and ultrabasic ...

www.sciencedirect.com/science/article/pii/0040195172900133

However, the oldest exposed parts of the crust (>2.5 b.y.) provide evidence for a characteristically different type of magmatic activity implying very high degrees ...

www.geol-amu.org/notes/b3-3-3.htm

Ore Deposits Related to Magmatic Activity. Certain accessory or uncommon constituents of magmas become enriched into bodies of sufficient size and richness ...

geology.gsapubs.org/content/42/6/475.abstract

U/Pb dates from extrusive and intrusive rocks of the western Lake Superior Basin suggest a latent stage of reduced magmatic activity from ca. 1106 to 1100 Ma ...

petrology.oxfordjournals.org/content/early/2016/08/14/petrology.egw045.abstract

Aug 14, 2016 ... Abstract. Lying atop the relatively motionless Antarctic plate (velocity ∼6·46 mm a–1), the Crozet archipelago, midway between Madagascar ...

jgs.geoscienceworld.org/content/172/3/368

Magmatic activity across the East African North Tanzanian Divergence Zone. Sara Mana, Tanya Furman, Brent D. Turrin, Mark D. Feigenson, Carl C. Swisher.

unit.aist.go.jp/ievg/group/magma/index_e.html

Magmatic activity research group is conducting researches to model various volcanic phenomena for forecasting eruption and evolution of volcanic activity in  ...

onlinelibrary.wiley.com/doi/10.1029/2001GL014205/abstract

Apr 11, 2002 ... Geochemical (water chemistry) anomalies, first noted during 1990, coincide with the area of uplift and suggest the existence of a crustal magma ...