Hydrogen and deuterium isotopic evidence indicates that the source of terrestrial water was
mostly meteorites, with additional influx from nebula gas during accretion. There are two …

Geophysical observations suggest that the transition zone is wet locally. Continental and
oceanic sediment components together with the basaltic and peridotitic components might …

Various methods for inferring the water distribution in Earth's mantle are reviewed including
geochemical and geophysical methods. The geochemical approach using the water …

The mantle transition zone, located at depths of 410–660 km between the lower and upper
mantle, is an important water reservoir in the Earth's interior,,,. However, there are regional …

We present a multi‐resolution finite‐element approach for three‐dimensional (3D)
electromagnetic (EM) induction modeling in spherical Earth. First, the secondary electric …

This study presents results of mapping three-dimensional (3-D) variations of the electrical
conductivity in depths ranging from 400 to 1200 km using 6 years of magnetic data from the …

Water is transported into the deep mantle via hydrous minerals in subducting slabs. During
subduction, a series of minerals in these slabs such as serpentine or chlorite, Mg–sursassite …

The global 3-D electrical conductivity distribution in the mantle (in the depth range between
400 and 1600 km) is imaged by inverting C-responses estimated on a global net of …

We performed a three-year seafloor electromagnetic survey in the Philippine Sea, including
the western edge of the Pacific Ocean, to image electrical features of a deep mantle slab …

Magnetotelluric (MT) surveying is a remote sensing technique of the crust and mantle based
on electrical conductivity that provides constraints to our knowledge of the structure and …