Results 41 to 50 of about 387,571 (165)

Beach Gold and Heavy Mineral Concentrates on Tiwai Spit Gravel Strand Plain, Southland, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.
The Holocene Tiwai Spit on Foveaux Strait is a 12 km by 2 km gravel‐dominated strand plain, ∼10 m above present sea level. Gravel clasts are dominated by well‐rounded quartz cobbles, pebbles and granules derived from Otago Schist 200 km to the north in evolving river drainage systems during late Cenozoic.
Marshall Palmer, Dave Craw
wiley   +1 more source

Constraining Ore-Forming Processes Using Magnetite-Titanomagnetite Chemistry: A Case Study of the Mamuniyeh Cu Mineralization System, Urumieh-Dokhtar Magmatic Arc

Journal of Economic Geology
The low-sulfidation epithermal copper mineralization in the Mamouniyeh area occurs as silica-sulfide-oxide veins hosted by monzonitic, gabbroic intrusions, and andesite.
Mohammad Goudarzi, Hassan Zamanian, Urs Klötzli, David Lentz, Matee Ullah   +4 more
doaj   +1 more source

Geological and mineralogical evolution of Lower Paleozoic (Late Cambrian) Corundum-Rich Metabauxite in the Southeast Sirjan, Sanandaj-Sirjan Zone

Journal of Economic Geology, 2019
Introduction Bauxite deposits in Iran are dominantly hosted by Late Triassic-Early Jurassic sequences in the Alborz zone and Late Cretaceous in the Zagros zone (e.g., Zarasvandi et al., 2008).
Mohsen Mobasheri, Fardin Mousivand , Mojtaba Rostami Hussory   +2 more
doaj   +1 more source

Cryptic Superfine Placer Gold Populations, Round Hill Mine, Southern New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.
Superfine (50–<1 µm) detrital gold and platinum group mineral (PGM) particles at the Round Hill mine near Foveaux Strait were locally derived (<20 km) from as‐yet undefined basement sources. This superfine component contrasts with the dominant coarser (typically >100 µm) gold and PGM particles at the mine that have been transported for >100 km in ...
Marshall Palmer, Dave Craw
wiley   +1 more source

Magnetite-rutile symplectite in ilmenite records magma hydration in layered intrusions

, 2022
The textures and geochemical characteristics of the rocks in layered intrusions potentially provide insights into the physicochemical processes that have taken place in mafic magma chambers.
Xian, Haiyang, Tan, Wei, Wang, Christina Yan, Reddy, Steven M., Xing, Changming, He, Hongping   +5 more
core   +1 more source

Assessment of the usefulness of lithic clasts from pyroclastic deposits as paleomagnetic recorders [PDF]

, 2009
EThOS - Electronic Theses Online ServiceGBUnited ...
Paterson, Greig Alexander
core   +1 more source

Discovery of heavy mineral sand in Djiboutian coastline (Obock area, SE Afar rift)

Journal of Trace Elements and Minerals
Background: In this paper, we present the first study of black sand deposits collected along the coastline of the Obock area, which is located in the North East part of Djibouti (SE Afar Rif).
N. Moussa, J. Etoubleau, T. Mohamed, J. Langlade, M.O. Awaleh   +4 more
doaj   +1 more source

High‐Value Utilization of Typical Vanadium‐Bearing Solid Wastes: Mineralogy, Pathways, and Perspectives

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Vanadium‐bearing solid wastes (VBSWs) have emerged as a key research priority in resource recovery and environmental remediation because of their high resource value, large generation volume, and complex phase composition. However, practical utilization of these wastes still faces major challenges, including heavy environmental burdens, ill ...
Bowen Duan, Tongyu Guo, Yinhui Wang, Lipeng Zhu, Ling Wang, Jing Li, Shuxian Liu, Xiuli Han   +7 more
wiley   +1 more source

Low-temperature cooling behavior of single-domain magnetite: Forcing of the crystallographic axes and interactions [PDF]

, 2006
Low-temperature cycling (LTC) of magnetic remanences carried by rocks has become a standard technique in paleomagnetism, rock magnetism, and environmental magnetism as a means of identifying mineralogy and grain size.
Williams, Wyn; id_orcid
core   +1 more source

Geochemistry and genesis of apatite bearing Fe oxide Dizdaj deposit, SE Zanjan

Journal of Economic Geology, 2010
Sorkheh-Dizaj apatite-iron oxide deposit is located 32 km southeast of Zanjan. The area is situated within the Tarom subzone of Western Alborz-Azarbaijan structural zone.
Ghasem Nabatian, Majid Ghaderi, Nematollah Rashidnejad Omran, Farahnaz Daliran   +3 more
doaj   +1 more source