Abstract The Okinawa Trough (OT), is a back-arc basin where rifting is in its initial stages,
and where hydrothermal fields (HTFs) have developed above terrigenous sediments and …

We assess the distribution of gold and investigate the physicochemical controls on gold
enrichment in the Okinawa Trough, an immature back-arc basin. We conducted a systematic …

The processes and time scales of magma mixing in shallow silicic magma chambers prior to
eruptions in the Okinawa Trough (OT) are still poorly understood. Here, we employed in situ …

Lower crustal sulfide-bearing cumulates beneath the convergent plate margins represent a
major copper reservoir. However, how Cu is mobilized and migrated in the lower crust is still …

Magmatic sulfide saturation and dissolution are increasingly thought to play important roles
in controlling the behavior of chalcophile metals in arc-related magma. However, the …

Platinum-group elements (PGEs) have a strong affinity for sulfur and tend to accumulate in
the deep continental crust, either concentrated within magmatic Cu-Ni-PGE deposits or …

Fractionation of sulfides during ascent of mantle-derived magmas distributes sulfur and
chalcophile elements into the Earth's lithosphere. It has been suggested that continental …

It is widely considered that arc magmas are highly oxidized, and can thus dissolve a large
amount of sulfur, thereby preventing significant sulfide saturation prior to fluid saturation …

Abstract The Iheya Graben is a back-arc spreading centre in the middle part of the Okinawa
Trough. It is also located in the centre of an anomalous volcanic zone (volcanic arc migration …

Calcium (Ca) is an essential element closely connecting to the recycling of marine
carbonate at subduction zones. Here, we report Ca isotopic compositions (denote as δ …