Conversion of tectonic and climatic forcings into records of sediment supply and provenance.

ABSTRACT: Understanding how environmental forcings (e.g., tectonics, climate) are transformed by erosional landscapes into sedimentary signals is a critical component of inverting the stratigraphic record. Previous research has largely focused on sediment supply (Q_s) and grain size as the de facto sedimentary signals of changing forcing mechanisms. We use a numerical model to consider the paired response of sediment provenance (P_v), expressed as fractional sediment load, and Q_s to demonstrate that the same change in environmental forcing may have a different expression in the sedimentary record. While Q_s reflects integrated denudation across an erosional catchment, P_v is controlled by spatially variable erosion that occurs in transient landscape

SUBMITTER: Sharman GR 

PROVIDER: S-EPMC6411995 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature