Episodic kilometre-scale burial and exhumation and the importance of missing section

P Green, I Duddy, P Japsen - Earth-Science Reviews, 2022 - Elsevier
The incompleteness of the stratigraphical record is well documented, and the concept of
“missing time” has attracted renewed attention in recent years. However, the importance of …

Macrostratigraphy: insights into cyclic and secular evolution of the Earth-life system

SE Peters, DP Quinn, JM Husson… - Annual Review of Earth …, 2022 - annualreviews.org
Rocks in Earth's crust are formed, modified, and destroyed in response to myriad
interactions between the solid Earth (tectonics, geodynamics), the fluid Earth (ocean …

Phanerozoic flooding of North America and the Great Unconformity

AR Tasistro-Hart, FA Macdonald - Proceedings of the …, 2023 - National Acad Sciences
The flooding record of North America has been used to infer patterns of global erosion and
sea level in deep time. Here, we utilize the geospatial dimension of the stratigraphic record …

Implementation of an alpha damage annealing model for zircon (U‐Th)/He thermochronology with comparison to a zircon fission track annealing model

WR Guenthner - Geochemistry, Geophysics, Geosystems, 2021 - Wiley Online Library
Radiation damage exerts a fundamental control on He diffusion in zircon, which manifests
as correlations between (U‐Th)/He date and effective uranium concentration. These …

Ediacaran-Ordovician tectonic and geodynamic drivers of Great Unconformity exhumation on the southern Canadian Shield

BA Peak, RM Flowers, FA Macdonald - Earth and Planetary Science Letters, 2023 - Elsevier
Abstract The Great Unconformity erosion surface between Paleozoic sedimentary rocks and
Archean-Proterozoic basement has been related to erosion occurring during Snowball Earth …

Neoproterozoic of laurentia

FA Macdonald, WA Yonkee, RM Flowers… - 2023 - pubs.geoscienceworld.org
Neoproterozoic to Cambrian isolation of Laurentia during the breakup of Rodinia was
associated with multiple large igneous provinces, protracted multiphase rifting, and variable …

Hemispheric geochemical dichotomy of the mantle is a legacy of austral supercontinent assembly and onset of deep continental crust subduction

MG Jackson, FA Macdonald - AGU Advances, 2022 - Wiley Online Library
Oceanic hotspots with extreme enriched mantle radiogenic isotopic signatures—including
low 143Nd/144Nd indicative of subducted continental crust—are linked to plume conduits …

Thermal history modeling techniques and interpretation strategies: Applications using HeFTy

KE Murray, ALS Goddard, AL Abbey… - …, 2022 - pubs.geoscienceworld.org
Advances in low-temperature thermochronology, and the wide range of geologic problems
that it is used to investigate, have prompted the routine use of thermal history (time …

Global sea-level fall triggered Ediacaran–Cambrian unconformity in North China craton

Y Sun, Q Ouyang, X Lang, K Pang, C Wu… - Earth and Planetary …, 2023 - Elsevier
Abstract The Great Unconformity that separates the Cambrian and the underlying
Proterozoic strata has been interpreted as recording a composite of multiple diachronous …

Zircon (U-Th)/He thermochronology reveals pre-Great Unconformity paleotopography in the Grand Canyon region, USA

BA Peak, RM Flowers, FA Macdonald… - …, 2021 - pubs.geoscienceworld.org
Abstract The Great Unconformity is an iconic geologic feature that coincides with an
enigmatic period of Earth's history that spans the assembly and breakup of the …