Tiny fossil shells hold two chemical signals that could skew past ocean temperatures

PHYSorg
Apr 30, 2026, 5:30 pm242 ptsTop
Tiny plankton shells used to reconstruct past polar ocean temperatures may contain two different chemical stories, a new study by iC3 researchers has found. The work shows that Neogloboquadrina pachyderma, a key species in polar climate archives, can grow an outer shell crust with a different chemical make-up…

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