Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
(A) Primitive Mantle normalized trace element pattern and (B) Chondrite normalized rare earth element pattern for the Chilika Anchor rock (green squares) compared with those for Palitana lava flows (data source: Sheth et al., 2013)16. Normalizing values are from Sun and McDonough (1989)21.