Table 1 Semi-quantitative distribution of sulfide minerals and main element compositions of hydrothermal precipitates from the Kairei and Pelagia hydrothermal vent fields.
Sample | Semi-quantitative mineral composition | Quantitative main element composition | Description | |
|---|---|---|---|---|
Kairei area | ||||
INDEX2016-06ROV03-A | S1 | ccp+++ py/mrc+ sp++ | Cu: 12.6–25.8 wt.% Fe: 18.5–25.6 wt.% Zn: 10.3–29.7 wt.% | fragment of inactive chimney, Kairei active zone |
INDEX2016-06ROV03-N | S2 | ccp 0 py/mrc+++ sp+++ iso 0 | Cu: 0.3–0.4 wt.% Fe: 23.8–28.3 wt.% Zn: 28.9–31.7 wt.% | inactive beehive shaped chimney, Kairei inactive zone |
INDEX2016-12ROV06-E | S7 | ccp +++ py/mrc+ sp++ | Cu: 18.1–26.2 wt.% Fe: 21.2–28.4 wt.% Zn: 6.8–24.3 wt.% | inactive chimney edifice, Kairei active zone |
INDEX2016-12ROV06-F | S8 | ccp+++ py/mrc+ sp++ anh 0 | Cu: 25.3–26.5 wt.% Fe: 27.1–29.0 wt.% Zn: 6.5–10.7 wt.% | fragment of active chimney, Kairei HF |
Pelagia area | ||||
INDEX2016-16ROV08-E | S5 | ccp+ py/mrc+++ sp + | Cu: 1.3–7.4 wt.% Fe: 33.3–44.4 wt.% Zn: 0.9–12.2 wt.% | active beehive shaped chimney, Pelagia HF |
INDEX2016-20ROV10-G | S6 | ccp 0 py/mrc+++ po+ sp++ iso + | Cu: 1.5–1.7 wt.% Fe: 41.5–42.2 wt.% Zn: 7.0–7.1 wt.% | fragment of active chimney, Pelagia HF |
INDEX2016-20ROV10-J | S4 | ccp 0 py/mrc+++ sp+ | Cu: 0.1–0.8 wt.% Fe: 29.9–36.2 wt.% Zn: 0.5–3.3 wt.% | fragment of beehive shaped inactive chimney, Pelagia HF |
