Results 31 to 40 of about 20,324 (191)

Granites and granites in the East Greenland Caledonides

open access: yes, 2008
Caledonian (435-425 Ma) and "Grenvillian" (950-900 Ma) S-type leucogranites and augen gneisses are prominent in the thrust units that form the southern half of the East Greenland Caledonian orogen, south of 76°N.
Kalsbeek, Feiko   +4 more
openaire   +2 more sources

Whole-rock and mineral chemistry characterization of contrasting granitoids, constraints on the source of the Vieirópolis NYF-type pegmatites, Northeastern Brazil

open access: yesBrazilian Journal of Geology, 2020
The Vieirópolis pegmatite field is characterized by amazonite pegmatites inserted in the Borborema Province. The Serra Branca pegmatite is hosted by the Serra Branca granites, which intruded partially the Serra Negra granites, and stands out by its ...
Igor Manoel Belo de Albuquerque e Souza   +4 more
doaj   +1 more source

Granite Guardian

open access: yesCoRR
We introduce the Granite Guardian models, a suite of safeguards designed to provide risk detection for prompts and responses, enabling safe and responsible use in combination with any large language model (LLM). These models offer comprehensive coverage across multiple risk dimensions, including social bias, profanity, violence, sexual content ...
Inkit Padhi   +22 more
openaire   +3 more sources

CONTRIBUTION TO THE GEOLOGY AND RADIOACTIVITY OF THE OLDER GRANITOIDS AND YOUNGER GRANITED OF GABAL EL-URF-GABAL ABU SHIHAT AREA, EASTERN DESERT, EGYPT [PDF]

open access: yesDelta Journal of Science, 2005
The younger granites form an elongated belt following NNE-SSW direction. They intrude the older granitoids with sharp intrusive contacts and carry them as roof pendants. Two varieties of the younger granites are identified.
AHMED M. DARDIER, MEDHAT M. EL-MANSI
doaj   +1 more source

Murzinka massive at the middle urals as an example of the interformational granite pluton: magmatic sources, geochemical zonality, peculiarities of formation

open access: yesЛитосфера, 2018
Murzinka massif is a sheet-like interformational body steeply deeping to the East with length about 6 km. Proterozoic metamorphic rocks of the predominantly granulite facies ( P = 5-6 kbar, T = 750-800°C) occur at the base of massif, and volcanic ...
German B. Fershtater   +1 more
doaj   +1 more source

The Tanami Network: Placing the Technology in the Hands of the Remote Central Australian Desert Communities [PDF]

open access: yes, 1999
PCF1 // Working paper presented by Robin Japanangka Granites and Peter Holt at the First Pan-Commonwealth Forum on Open Learning (PCF1) in Bandar Seri Begawan, Brunei Darussalam. /
Granites, Robin Japanangka, Holt, Peter
core  

Statistical design applied to hydric property behaviour for monitoring granite consolidation and/or water-repellent treatments

open access: yesMateriales de Construccion, 2006
The suitability of granite conservation treatments (consolidation and/or water-repellency) wide/y used to protect heritage structures was evaluated on the basis of the changes occurring in the intrinsic characteristics of the stone (imbibition capacity ...
A. C. Íñigo   +2 more
doaj   +1 more source

PETROGENETIC MODELING OF SOME GRANITIC MASSES IN THE CENTRAL EASTERN DESERT, EGYPT [PDF]

open access: yesDelta Journal of Science, 2007
Three granitic masses, namely Gabal Dellihimmi (140 km2), Gabal Abu Tiyur (30 km2) and Gabal Um Shaddad (17 km2) are located in the central Eastern Desert, intruded older metavolcanics and metasediments.
A.I. Ragab   +4 more
doaj   +1 more source

Determination of trace element profiles in coarse-grained minerals by external millibeam PIXE - A schorl tourmaline study [PDF]

open access: yesBulletin of the Geological Society of Finland, 1995
The thick-target PIXE technique was applied to direct analysis of trace elements in tourmaline minerals. Analyses of these minerals with conventional wet-chemical methods are difficult and time consuming.
A. Lindroos   +4 more
doaj   +1 more source

Geology and geochemistry of the Redrock Granite and anorthosite xenoliths (Proterozoic) in the northern Burro Mountains, Grant County, New Mexico, USA [PDF]

open access: yesBulletin of the Geological Society of Finland, 2002
Mineral ages from the A-type granites and anorthosite xenoliths in the Redrock area in the northwestern Burro Mountains in southwestern New Mexico cluster around ~1220–1225 Ma and provide yet another example of bimodal igneous activity during this time ...
V.T. McLemore   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy