Tuesday, June 30, 2026
Science

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

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 chemic...

Tiny fossil shells hold two chemical signals that could skew past ocean temperatures
Image: Phys.org
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 from the shell beneath it, even when both are grown in the same conditions.

Originally published at Phys.org

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