.png){kind=icon}
.png){kind=icon}
Return
The Devonian–Carboniferous Boundary in western North America: Did tectonic inversion drive Earth system change?
.png){kind=icon}
OA
AI
M
K
S
DOI：10.1016/j.earscirev.2026.105629.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Studies of critical geological boundaries and associated Earth system shifts are often limited by insufficient consideration of regional geological contexts, favouring correlations with purported global events over investigation of local geodynamic controls. The Devonian–Carboniferous Boundary (DCB) interval of western North America is an example. The margin underwent major depositional and environmental changes, including unconformities, collapse of warm-water carbonate platforms, clastic influx, anoxia, localized shallow-water extinctions, and warm- to cool-water carbonate turnover beginning at ∼364 Ma and lasting more than 10 Myr. New stratigraphic analyses of 10 DCB outcrops spanning 700 km in western Canada and the western United States, combined with new geochemical data and review of published sedimentological, and geochronological datasets, demonstrate that unconformities, clastic influx, anoxia, and carbonate facies distributions were largely controlled by tectonism along a convergent margin related to the DCB phase of the Antler Orogeny. This contrasts with previous interpretations that linked these changes to purported global events, including the Hangenberg Crisis (∼359 Ma), assuming western North America remained a passive margin.
Keywords:
Devonian–Carboniferous boundary
Antler Orogeny
Tectonic inversion
Western Laurentia
Clastic influx and anoxia
Carbonate platform evolution
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
E
IF:
10
Papers:
3.8K
Citations:
4.2W
Organization
No organization information available
Cited Papers