Evidence item

The evidence comes from two named Atlantic core sites and covers approximately 3.6 to 2 million years ago, not all tropical Atlantic sediments. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 25787

Source: Reduced N2 fixation in the tropical Atlantic Ocean during the warm late Pliocene · locator {} · excerpt hash sha256:bb9d675fd5951017e94b4d37ea17f17dd54b06ee5c3519751ba94698d57daa2f

We present a new record of past N2 fixation based on FB-δ15N measurements spanning the late Pliocene and into the Early Pleistocene (~3.6 Ma to ~2 Ma) from the Western Tropical Atlantic (WTA) ODP Site 999A. We compare our WTA record with new data from the Eastern Equatorial Atlantic ODP Site 662.