Geochemical Constraints on the Origin and Impact of a Large 3He Enhancement Event in the Late Cretaceous

Name: Geochemical Constraints on the Origin and Impact of a Large 3He Enhancement Event in the Late Cretaceous
Creator: Ruolin Deng
Published: 2026-02-19T12:31:37.487Z
Keywords: Limestone, Paleomagnetism, Trace Metal, Interplanetary Dust, Noble Gas Geochemistry

Deng, Ruolin; Marquez, Ren T.C.; Kirschvink, Joseph L.; Tissot, François L.H.; Batygin, Konstantin; Mitchell, Ross; Montanari, Alessandro; Farley, Kenneth A.

doi:10.17632/j7k4rvxh3d.2

Geochemical Constraints on the Origin and Impact of a Large 3He Enhancement Event in the Late Cretaceous

Published: 19 February 2026| Version 2 | DOI: 10.17632/j7k4rvxh3d.2

Contributors:

,

, Alessandro Montanari,

Description

Data File 1. Helium and non-carbonate fraction data of 80-Ma Scaglia Rossa Limestone from Apiro, Italy and Marine Sediment Cores from ODP Site 1207 Data File 2. Trace metal data of 80-Ma Scaglia Rossa Limestone from Apiro, Italy Data File 3. Paleomagnetic data of 80-Ma Scaglia Rossa Limestone from Apiro, Italy Data File 4. Sedimentation rate model Data File 5. Reccurrence rate and Poisson probability of geomagnetic reversals Data File 6. Poynting-Robertson time of cosmic dust produced in an asteroid collision

Files

Steps to reproduce

See 2. Materials and Methods of Deng et al. (2026): "Geochemical Constraints on the Origin and Impact of a Large 3He Enhancement Event in the Late Cretaceous"

Institutions

Institute of Geology and Geophysics Chinese Academy of Sciences
Beijing, Beijing
California Institute of Technology
CA, Pasadena

Geochemical Constraints on the Origin and Impact of a Large 3He Enhancement Event in the Late Cretaceous

Description

Files

Steps to reproduce

Institutions

Categories

Licence