Results 11 to 20 of about 429,179 (286)

Radiometric Mapping for The Identification of Hydrothermally Altered Zones Related to Gold Mineralization in Ife–Ilesa Schist Belt, Southwestern Nigeria

Indonesian Journal of Earth Sciences, 2023
This study presents the interpretation of airborne gamma ray spectrometric data to delineate hydrothermally altered zones related to gold mineralization in the Ife–Ilesa Schist belt. K/eTh, Kd and F–Maps highlighting Potassic alterations related to gold
Ayokunle Adewale Akinlalu
doaj   +1 more source

Hydrothermal Alteration of Glass to Chrysotile [PDF]

Journal of the American Ceramic Society, 2012
Chrysotile fibers were synthesized from glass in hydrothermal conditions. The starting materials were first held at 1650°C and then rapidly quenched down to room temperature. The resulting glass, after the addition of mineralizing agents, was hydrothermically altered in the following conditions: temperature 300 °
BLOISE, Andrea, Belluso E, Catalano M, Barrese E, MIRIELLO, DOMENICO, APOLLARO, Carmine   +5 more
openaire   +3 more sources

K isotopes as a tracer of seafloor hydrothermal alteration. [PDF]

Proc Natl Acad Sci U S A, 2017
Significance Elemental exchange between seawater and oceanic crust is important both in modulating the ionic composition of seawater over geologic time and in controlling the elemental and isotopic makeup of various solid-earth reservoirs.
Parendo CA, Jacobsen SB, Wang K.
europepmc   +4 more sources

Hydrothermal Alteration on Composite Volcanoes: Mineralogy, Hyperspectral Imaging, and Aeromagnetic Study of Mt Ruapehu, New Zealand

Geochemistry, Geophysics, Geosystems, 2020
Prolonged volcanic activity can induce surface weathering and hydrothermal alteration that is a primary control on edifice instability, posing a complex hazard with its challenges to accurately forecast and mitigate.
Gabor Kereszturi, Lauren N. Schaefer, Craig Miller, Stuart Mead   +3 more
doaj   +1 more source

Aqueous alteration mapping in Rishabdev ultramafic complex using imaging spectroscopy

International Journal of Applied Earth Observations and Geoinformation, 2020
Hyperspectral remote sensing/imaging spectroscopy has enabled precise identification and mapping of hydrothermal alteration mineral assemblages based on diagnostic absorption features of minerals.
Hrishikesh Kumar, A.S. Rajawat
doaj   +1 more source

Towards better delineation of hydrothermal alterations via multi-sensor remote sensing and airborne geophysical data

Scientific Reports, 2023
Integrating various tools in targeting mineral deposits increases the chance of adequate detection and characterization of mineralization zones. Selecting a convenient dataset is a key for a precise geological and hydrothermal alteration mapping.
Ali Shebl, Mahmoud Abdellatif, Mohamed Badawi, Maher Dawoud, Amr S. Fahil, Árpád Csámer   +5 more
doaj   +1 more source

Mapping hydrothermal alteration mineral deposits from Landsat 8 satellite data in Pala, Mayo Kebbi Region, Southwestern Chad

Scientific African, 2021
The different image attribute extracting techniques, spectral enhancement ability, pixel classification methods have been applied on the Landsat 8 OLI satellite image data to map geological features and spatial distribution of hydrothermal alteration ...
Olawale Olakunle Osinowo, Ahmed Gomy, Moussa Isseini   +2 more
doaj   +1 more source

From Geitafell Volcano (Iceland) to Mars: Hydrothermal Alteration of Basalt to Constrain Subsurface Fluid Pathways

, 2023
Hydrothermal systems have the potential to be habitable environments for microbial life in the martian subsurface since they provide suitable temperatures, nutrients and are protected from surface radiation.
Semprich, Julia
core   +3 more sources

Mineralogical evidence for hydrothermal alteration of Bennu samples. [PDF]

Nat Geosci
Samples of asteroid (101955) Bennu delivered by the OSIRIS-REx mission offer the opportunity to study pristine planetary materials unchanged by exposure to the terrestrial environment. Here we use a combination of X-ray diffraction and various electron microscopy techniques to explore the detailed mineralogy of Bennu samples and determine the ...
Zega TJ, McCoy TJ, Russell SS, Keller LP, Gainsforth Z, Singerling SA, Manga VR, Harrison C, Libourel G, Prince BS, Thomas-Keprta K, King A, Portail M, Guigoz V, Tu V, Le L, Thompson M, Benner MC, Kerrison NA, Barnes JJ, Ong I, Haenecour P, Chaves L, Smith L, Kontogiannis M, Vega Santiago N, Hill D, Zeszut Z, Domanik K, Chang YJ, Corrigan CM, Ray S, Wardell LR, Gooding T, Rose TR, Bates HC, Schofield PF, Almeida NV, Salge T, Najorka J, Seifert LB, Lunning N, Righter K, Nguyen AN, Brenker FE, Eckley SA, Dworkin JP, Jones RH, Sandford SA, Marcus MA, Bechtel HA, Dominguez G, Yurimoto H, Kawasaki N, Bajo K, Sakamoto N, Zanetta PM, Tachibana S, Busemann H, Hamilton VE, Franchi IA, Grady M, Greenwood RC, Tait K, Timms N, Bland P, Jourdan F, Reddy SM, Rickard W, Saxey D, Vincze L, Connolly HC, Lauretta DS.   +72 more
europepmc   +6 more sources

Application of Hydrothermal Altered Reservoir Identification Method in Metamorphic Rock Buried Hill of Bozhong sag, Bohai Bay Basin, China

Frontiers in Earth Science, 2022
Hydrothermal fluid is one of the factors controlling Archean buried hill reservoirs in Bozhong 19-6. However, there are no clear studies focusing on the influence of hydrothermal alteration products and their lithological characteristics on reservoirs ...
Boyuan Zhu, Boyuan Zhu, Renfang Pan, Renfang Pan, Chaomo Zhang, Chaomo Zhang, Zhansong Zhang, Zhansong Zhang, Wenrui Shi, Wenrui Shi   +9 more
doaj   +1 more source