Geostatistical mapping of the depth to the bottom of magnetic sources and heat flow estimations in Mexico

verfasst von

Juan Luis Carrillo-de la Cruz, Rosa María Prol-Ledesma, Gerald Gabriel

Abstract

The depth to the bottom of magnetic sources (DBMS) is widely used as a proxy for crustal thermal structures. In this study, the DBMS is calculated using the spectral analysis of aeromagnetic data for the whole territory of Mexico. By assuming the DBMS to be related to the Curie point depth, the heat flow distribution is estimated. The DBMS and heat flow maps were constructed using geostatistical simulations to quantitatively determine standard deviation as uncertainty. The results show a good agreement with the complex geologic and tectonic setting in Mexico. Small DBMS values (high heat flow) as expected appear in areas where recent volcanism occurs and at seafloor spreading zones. In contrast, large values are present in tectonically stable zones.

Organisationseinheit(en)

Institut für Geologie

Externe Organisation(en)

Universidad Nacional Autónoma de México (UNAM)
Leibniz-Institut für Angewandte Geophysik (LIAG)

Typ

Artikel

Journal

GEOTHERMICS

Band

97

ISSN

0375-6505

Publikationsdatum

12.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Erneuerbare Energien, Nachhaltigkeit und Umwelt, Geotechnik und Ingenieurgeologie, Geologie

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1016/j.geothermics.2021.102225 (Zugang: Offen)