Results 51 to 60 of about 646 (177)

A Spectral and Spatial Comparison of Satellite-Based Hyperspectral Data for Geological Mapping

Remote Sensing
The new generation of satellite hyperspectral (HS) sensors provides remarkable potential for regional-scale mineralogical mapping. However, as with any satellite sensor, mapping results are dependent on a typically complex correction procedure needed to ...
Rupsa Chakraborty, Imane Rachdi, Samuel Thiele, René Booysen, Moritz Kirsch, Sandra Lorenz, Richard Gloaguen, Imane Sebari   +7 more
doaj   +1 more source

Unearthing of the Time of Emplacement of the Sillai Patti Carbonatite, Khyber Pakhtunkhwa, Pakistan: Constraints from 206Pb/238U Zircon Dating

Kashmir Journal of Science
The Sillai Patti carbonatite complex constitutes the second largest carbonatite complex of the Peshawar Plain Alkaline Igneous Province of northern Pakistan. It is located about 20 km west of Malakand, near Sillai Patti village.
Nimat Ullah Khattak, Y.X. Zhu, C.Q. Ma, L.X. Wang and W. Wang
doaj  

Normalized pressure integral production analysis of triporate-uniphase parallel inter-porosity flow model

Youqicang pingjia yu kaifa, 2021
Normalized Pressure Integral（NPI） Production Analysis is a kind of modern production decline analysis method which defines new parameters by integral. It can not only reflect the pseudo-steady state flow stage influenced by outer boundary, but also can ...
FU Tianyu, LIU Qiguo, CEN Xuefang, LI Longxin, PENG Xian   +4 more
doaj  

Calcite-saturated natrocarbonatites: composition, crystal morphology, and weathering

Volcanica
Interpretation of calcite-dominated fossil carbonatite volcanoes is complicated by the instability of many igneous carbonatite materials on Earth’s surface.
Michael Anenburg, Izzan Nur Aslam
doaj   +1 more source

The East Greenland rifted volcanic margin [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2011
The Palaeogene North Atlantic Igneous Province is among the largest igneous provinces in the world and this review of the East Greenland sector includes large amounts of information amassed since previous reviews around 1990.The main area of igneous ...
C. Kent Brooks
doaj  

Tremor signals reveal the structure and dynamics of the Oldoinyo Lengai magmatic plumbing system

Communications Earth & Environment
Earth’s only active carbonatite volcano Oldoinyo Lengai, Tanzania, is a peculiar endmember of volcanism in a young rift segment. Targeted by many petrological studies due to its effusive, cold carbonatite eruptions, its subsurface structure has only been
Miriam Christina Reiss, Corentin Caudron, Philip Hering, Diana Roman   +3 more
doaj   +1 more source

ZONATION OF PHLOGOPITE OF CARBONATITE-PEGMATITES OF THE BULDYM DEPOSIT OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]

Минералогия, 2017
In a plate 19 cm in size from the columnar crystal of phlogopite Buldym deposit in the Southern Urals, we studied the composition of alternating greenish-brown, yellowish-brown and darker brown areas by electron-probe microanalysis.
V.I. Popova, V.A. Kotlyarov, I.L. Nedosekova, V.A. Popov   +3 more
doaj  

AGE AND GEODYNAMIC SETTINGS FOR FORMATION OF CARBONATITE COMPLEXES AND ASSOCIATED RARE METAL DEPOSITS OF THE SOUTH URAL

Геодинамика и тектонофизика
The Ilmen-Vishnevogorsky and Buldym carbonatite complexes occurring in the Southern Urals represent linear deformed carbonatite complexes. Their origin, as well as the age and geodynamic conditions remain the subject of debate.
I. L. Nedosekova
doaj   +1 more source

Ca isotope systematics of carbonatites: Insights into carbonatite source and evolution [PDF]

Geochemical Perspectives Letters, 2021
J. Sun, X.-K. Zhu, N.S. Belshaw, W. Chen, A.G. Doroshkevich, W.-J. Luo, W.-L. Song, B.-B. Chen, Z.-G. Cheng, Z.-H Li, Y. Wang, J. Kynicky, G.M. Henderson   +12 more
openaire   +1 more source

Small effect of partial melt on electrical anomalies in the asthenosphere. [PDF]

Sci Adv, 2023
Liu H, Yang X, Karato SI.
europepmc   +1 more source