Results 1 to 10 of about 537 (93)

Nanggulan formation as a roof pendant at the central part of Kulon Progo Mountains, Yogyakarta, Indonesia [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2022
The Nanggulan Formation sediments form a weakly undulating hill and range in age from the Middle Eocene to the Late Oligocene. In Samigaluh and Sermo areas, a series of sedimentary rocks with small dimensions resembling fragments and forming a steep ...
Winarti   +2 more
doaj   +1 more source

Genesis and exhumation of the Kongur-Muztaghata and Maeryang gneiss domes in NE Pamir since the Mesozoic

open access: yesSolid Earth Sciences, 2023
The Kongur-Muztaghata-Maeryang terrane in NE Pamir is considered to be the western extension of the Songpan-Ganze terrane located in the northern Tibetan Plateau. The Kongur-Muztaghata gneiss dome (KMGD) is situated in the north while the Maeryang gneiss
Zhiqin Xu   +8 more
doaj   +1 more source

Implication of geological domains data for modeling and estimating resources from Nkout iron deposit (South-Cameroun) [PDF]

open access: yesJournal of Mining and Metallurgy. Section A: Mining, 2021
This paper is devoted to determining whether the addition of geological information can improve the resource estimate of mineral resources. The geochemical data used come from 116 drill holes in the Nkout East iron deposit in southern Cameroon.
Boroh A.W.   +4 more
doaj   +1 more source

REE patterns for apatites from Proterozoic phosphatic metasediments, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1983
Several occurrences of uranium- and apatite-bearing metasediments are known in the Precambrian of Finland. The characteristic rock types in the occurrences: metaphosphorite, apatite-bearing carbonate and calc-silicate rocks and apatite-quartz-feldspar ...
P. Rehtijärvi
doaj   +1 more source

Petrology and tectono-magmatic setting of Zorrati granitoid, southwest of Birjand (East of Lut block) [PDF]

open access: yesپترولوژی, 2023
The Zorrati granitoid (ZG) pluton exposed on the eastern edge of the Lut block trending north-south. The Lut block surrounded in the north by the Darone fault, in the south by the Jazmurian fault and in the east and  the  west by Nahbandan and Naiband ...
Ebadolah Toulabi Nejad   +4 more
doaj   +1 more source

ANALISIS TENSOR FASE DAN PEMODELAN 2D DATA MAGNETOTELURIK GABBS VALLEY, NEVADA, USA

open access: yesJGE, 2023
Metode magnetotellurik (MT) merupakan salah satu teknik dalam metode geofisika yang menggunakan sumber alami dalam bentuk medan elektromagnetik yang berasal dari medan listrik dan variasi medan magnet di bumi.
Pahri Pahri   +2 more
doaj   +1 more source

Formation of an Al‐Rich Niccolite‐Type Silica in Subducted Oceanic Crust: Implications for Water Transport to the Deep Lower Mantle

open access: yesGeophysical Research Letters, 2022
Subducted oceanic crust is enriched in free silica. Although being one of the silica polymorphs at lower‐mantle pressures, niccolite‐type phase (Nt‐phase) has not been documented in multicomponent metabasaltic or metasediment compositions relevant to ...
Lu Liu   +8 more
doaj   +1 more source

Assessment of image ratio technique: Targeting structural features and mineralization characteristics in the southwestern part of the Sokoto Basin in Nigeria using Landsat 8 imagery

open access: yesKuwait Journal of Science, 2023
Landsat 8 used multispectral images to map surface structures and validate the existence of suspected mineral alteration zones in the southwestern part of the Sokoto Basin in Nigeria.
N.Kolawole Olasunkanmi   +2 more
doaj   +1 more source

Open-system magmatic evolution and crystallization conditions of the Ediacaran shoshonitic rocks from the São João do Sabugi Pluton, Borborema Province, NE Brazil

open access: yesBrazilian Journal of Geology, 2021
The São João do Sabugi Pluton (SJSP) (∼579 Ma) is one of the most expressive occurrences of Ediacaran, syn- to post-collisional shoshonitic rocks in the Rio Piranhas-Seridó Domain, Borborema Province, NE Brazil.
Dayvison Bruno Cordeiro de Paiva   +3 more
doaj   +1 more source

Tourmaline occurrence and gold mineralization at a granitoid-metasediment contact in the Upper Lom Basin, east Cameroon

open access: yesSN Applied Sciences, 2023
Gold mineralization of the Upper Lom Basin in the eastern Cameroon goldfield is spatially associated with tourmaline. The goldfield belongs to the Adamawa-Yadé Domain of the Central African Fold Belt and is characterized by eluvial, alluvial and lode ...
Nicoline Kibong Fontem   +6 more
doaj   +1 more source

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