Results 61 to 70 of about 549,859 (138)

Petrological Characteristics and Physico-Mechanical Properties of Dokhan Volcanics for Decorative Stones and Building Material Applications

Buildings
Wide varieties of igneous rocks are extensively utilized as stones for decoration purposes and as a potential source for building. With the use of petrological (mineralogical and chemical) and physico-mechanical analyses, the current work accurately ...
El Saeed R. Lasheen, Mabrouk Sami, Ahmed A. Hegazy, Hasan Arman, Ioan V. Sanislav, Mohamed S. Ahmed, Mohammed A. Rashwan   +6 more
doaj   +1 more source

Geochemical Characterization of Rain Water Particulate Material on a Coastal Sub-Tropical Region in SE: Brazil

Journal of the Brazilian Chemical Society, 1998
Airborne contamination has been of concern for a number of scientist in temperate regions. In the tropics, a very small amount of data is available. In this work, rain water particulate material was monitored in two sites in Rio de Janeiro State (Brazil):
Silva Filho E.V., Paiva R.P., Wasserman J.C., Lacerda L.D.   +3 more
doaj  

TELEMETERING SYSTEM FOR OBSERVATIONS OF CRUSTAL DEFORMATIONS AND EARTHQUAKES AT THE KAMITAKARA CRUSTAL MOVEMENT OBSERVATORY

, 1978
Central recording system for monitoring crustal deformations and seismic activities in thewestern Chubu region, Japan, by the use of digital telemetering device with time-division PCMmultiplex, has started into operation in May 1977 at the Kamitakara ...
地震予知計測部門, 上宝地殻変動観測所   +1 more
core  

Crustal structure of the spreading plate boundary in Iceland and the north Atlantic from gravity data [PDF]

, 1994
Gravity datasets from two geothermal areas in Iceland, an Iceland-wide gravity dataset, and marine gravity data from the Reykjanes Ridge at 58˚N, which can be seen as the submarine extension of the Icelandic accretionary system, have been studied in this
Field, Paul R.
core  

Neoarchean subduction to back-arc extension in the North China Craton: Insights from the Dengfeng basic rock

Solid Earth Sciences
The scarcity of the early Precambrian geological record limits our comprehension of crucial information concerning interactions between the crust and mantle, mechanisms involved in subduction zone arc-continental collisions, as well as patterns of mantle
Heng Liu, Lin Sun, Lei Liu, Shuhab D. Khan, Yongjun Gao, Tianyang Hu   +5 more
doaj   +1 more source

Crustal fault reactivation facilitating lithospheric folding/buckling in the central Indian Ocean

, 1996
High-quality, normal-incidence seismic reflection data confirm that tectonic deformation in the central Indian Ocean occurs at two spatial scales: whole lithosphere folding with wavelengths varying between 100 and 300 km, and compressional reactivation ...
Beekman, F., Cloetingh, S., Bull, Jonathan M., Scrutton, R.A.   +3 more
core   +1 more source

Segmentation and cycles of crustal accretion at mid-ocean ridges: a study of the Reykjanes Ridge [PDF]

, 2003
Early studies of mid-ocean ridges suggest a fundamental difference between crustal accretionary processes at slow- and fast-spreading ridges. Accretion, and the supply of melt to the crust itself, is thought to be highly episodic at slow-spreading ridges
Gardiner, Alexander B.
core  

The role of crustal contamination in the genesis of Ni-Cu sulfide ores from the Cortegana Igneous Complex (SW Spain)

, 2011
Crustal contamination of mafic magmas with S-rich country rocks is believed to play a critical role in the formation of Ni-Cu sulfide ores in SW Spain. Whereas this process has been well recognized in the Aguablanca Ni-Cu deposit (the only economic ore ...
Piña García, Rubén, Gervilla, Fernando, Ortega Menor, Lorena, Lunar Hernández, María Del Rosario   +3 more
core   +1 more source

Distinct chalcophile-element inheritance from subducted continental crust in metasomatized mantle. [PDF]

Sci Adv
Wang Z, Wang X, Xu H, Zhang J, Jenner FE, Foley S, Ma L, Chen K, Sun J, Zong K, Liu Y, Li J, Zhang J, Hu Z.   +13 more
europepmc   +1 more source

The distribution and origin of Mercury's crustal magnetization. [PDF]

Proc Natl Acad Sci U S A
Johnson CL, Plattner AM, Cicchetti F, Miljković K.   +3 more
europepmc   +1 more source