Refining the use of vanadium and uranium as paleoredox proxies by examining s...

The Baltic Sea is largely anoxic and sulfidic at depth but periodically oxygenated by the inflow of oxic seawater from the North Sea. This present an ideal natural laboratory to...波罗的海（Baltic Sea）的深层水体整体处于缺氧且富硫化物的状态，但会周期性地因来自北海的含氧海水涌入而获得充氧。这为……提供了理想的天然实验室。