Seafloor magnetism under hydrothermal alteration: insights from magnetomineralogy and magnetic properties of the Southwest Indian Ridge basalts

S Wang, L Chang, C Tao, D Bilardello… - … Research: Solid Earth, 2021 - Wiley Online Library
Titanomagnetites in mid‐ocean ridge basalt (MORB) experience variable post crystallization
alterations associated with seafloor tectonic and environmental processes. Compared to low …

Progressive dissolution of titanomagnetite in high‐temperature hydrothermal vents dramatically reduces magnetization of Basaltic Ocean crust

S Wang, L Chang, T Wu, C Tao - Geophysical Research Letters, 2020 - Wiley Online Library
Hydrothermal alteration at high‐temperature vents near mid‐ocean ridge is thought to
produce pervasive magnetization lows on basaltic ocean crust, but the detailed alteration …

Magnetic properties and opaque mineralogy of rocks from selected seafloor hydrothermal sites at oceanic ridges

AL Wooldridge, SE Haggerty, PA Rona… - Journal of …, 1990 - Wiley Online Library
Magnetic properties (natural remanent magnetization (NRM), susceptibility (χ), Curie point
temperature (Tc), saturation isothermal remanent magnetization (IRMs), and Köenigsberger …

Subsolidus evolution and alteration of titanomagnetite in ocean ridge basalts from Deep Sea Drilling Project/Ocean Drilling Program Hole 504B9 Leg 83: Implications …

YH Shau, M Torii, CS Horng… - Journal of Geophysical …, 2000 - Wiley Online Library
Magnetic minerals in six samples of oceanic basalts of the transition zone and upper
sheeted dikes from Deep Sea Drilling Project/Ocean Drilling Program (DSDP/ODP) Hole …

Unraveling the magnetic carriers of igneous cores from the Atlantic, Pacific, and the southern Indian oceans with rock magnetic characterization

X Zhao, P Riisager, M Antretter, J Carlut… - Physics of the Earth and …, 2006 - Elsevier
Previous rock magnetic investigations of oceanic basement samples have been mainly
restricted by single drill holes or dredge collections. In this study, we present new and …

Seafloor hydrothermal alteration affecting magnetic properties of abyssal basaltic rocks: insights from back-arc lavas of the Okinawa Trough

M Fujii, H Sato, E Togawa, K Shimada… - earth, planets and space, 2018 - Springer
Seafloor hydrothermal systems in the back-arc region of the Okinawa Trough have been
viewed as a modern analogue to the Kuroko-type volcanogenic massive sulfide deposits …

Why is the remanent magnetic intensity of Cretaceous MORB so much higher than that of mid to late Cenozoic MORB?

D Wang, R Van der Voo, DR Peacor - Geosphere, 2005 - pubs.geoscienceworld.org
The fact that the natural remanent magnetization (NRM) intensity of mid-oceanic-ridge basalt
(MORB) samples shows systematic variations as a function of age has long been …

Origin of magnetic highs at ultramafic hosted hydrothermal systems: Insights from the Yokoniwa site of Central Indian Ridge

M Fujii, K Okino, T Sato, H Sato, K Nakamura - Earth and Planetary Science …, 2016 - Elsevier
High-resolution vector magnetic measurements were performed on an inactive ultramafic-
hosted hydrothermal vent field, called Yokoniwa Hydrothermal Field (YHF), using a deep …

Alteration and dissolution of fine-grained magnetite and its effects on magnetization of the ocean floor

W Xu, R Van der Voo, DR Peacor… - Earth and Planetary …, 1997 - Elsevier
Scanning and transmission electron microscopy (STEM) of ocean-floor pillow basalts with
ages between 0 and 70 Ma reveals progressive alteration of submicrometer titanomagnetite …

Inversion of titanomaghemite in oceanic basalt during heating

D Krása, J Matzka - Physics of the Earth and Planetary Interiors, 2007 - Elsevier
We studied the change of magnetic behaviour upon laboratory heating of altered mid-ocean
ridge basalt (MORB) samples in the age range of 16–35 Ma to determine the influence of …