Inferring the relationship between core-mantle heat flux and seismic tomography from mantle convection simulations

G Choblet, F Deschamps, H Amit, M Lasbleis - Physics of the Earth and …, 2023 - Elsevier
The heat flux pattern at Earth's core-mantle boundary (CMB) imposes a heterogeneous
boundary condition on core dynamics that may profoundly affect the geodynamo. Owing to …

New archeomagnetic directional records from Iron Age southern Africa (ca. 425–1550 CE) and implications for the South Atlantic Anomaly

VJ Hare, JA Tarduno, T Huffman… - Geophysical …, 2018 - Wiley Online Library
Abstract The paucity of Southern Hemisphere archeomagnetic data limits the resolution of
paleosecular variation models. At the same time, important changes in the modern and …

Solar wind parameter and seasonal variation effects on the South Atlantic Anomaly using Tsyganenko Models

KM Girgis, T Hada, S Matsukiyo - earth, planets and space, 2020 - Springer
We studied the space weather effects on the South Atlantic Anomaly (SAA) magnetic
response using Tsyganenko models. For the physical parameters characterizing the SAA …

Using archaeomagnetic field models to constrain the physics of the core: robustness and preferred locations of reversed flux patches

F Terra-Nova, H Amit, GA Hartmann… - Geophysical Journal …, 2016 - academic.oup.com
Archaeomagnetic field models cover longer timescales than historical models and may
therefore resolve the motion of geomagnetic features on the core–mantle boundary (CMB) in …

A first regional model of the past Earth's magnetic field from Africa for the last 4000 years

A Di Chiara, FJ Pavón-Carrasco - Physics of the Earth and Planetary …, 2022 - Elsevier
The understanding of the Earth's magnetic field variations over time on the African continent
is fundamental for several reasons. For instance, the most important feature of the present …

Palaeomagnetic evidence for the persistence or recurrence of geomagnetic main field anomalies in the South Atlantic

J Shah, AAP Koppers, M Leitner, R Leonhardt… - Earth and Planetary …, 2016 - Elsevier
We present a dataset of a full-vector palaeomagnetic study of Late Pleistocene lavas from
the island Tristan da Cunha in the South Atlantic Ocean. The current day geomagnetic field …

The impact of changing reservoir effects on the 14C chronology of a Holocene sediment record from South Africa

M Wündsch, T Haberzettl, ME Meadows… - Quaternary …, 2016 - Elsevier
A 30.5 m sediment core was recovered from the coastal lake Eilandvlei (EV13), which
represents a unique high-resolution record of environmental change for southern Africa. For …

Novel insights on the geomagnetic field in West Africa from a new intensity reference curve (0-2000 AD)

L Kapper, V Serneels, S Panovska, RG Ruíz, G Hellio… - Scientific reports, 2020 - nature.com
The geomagnetic field variations on the continent of Africa are still largely undeciphered for
the past two millennia. In spite of archaeological artefacts being reliable recorders of the …

New archeointensity data from NW Argentina (1300–1500 CE)

M Gomez-Paccard, A Chauvin, ME Albeck… - Physics of the Earth and …, 2019 - Elsevier
A good characterization of the geomagnetic field strength at centennial to millennial time
scales in the Southern Hemisphere is particularly crucial to disentangle the long-term …

Archaeology, baobabs and drought: Cultural proxies and environmental data from the Mapungubwe landscape, southern Africa

TN Huffman, S Woodborne - The Holocene, 2016 - journals.sagepub.com
Ethnographic and archaeological data from the Mapungubwe landscape show that
rainmaking deposits on hilltops, along with burnt grain bins in ordinary villages, represent …