A short-term warming interval during the apex of the Late Paleozoic Ice Age: Evidence from geochemical and magnetic records from South China

Huang, Hehe; Fang, Qiang; Huang, Wentao; Shi, Meinan; Zhang, Shihong; Yang, Tianshui; Li, Haiyan; Wu, Huaichun

doi:10.1016/j.palaeo.2024.112178

Cited by 1 publication

(2 citation statements)

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“…8. When the eccentricity was at a minimum, the Earth received insufficient insolation, the climate was cold and dry, and seasonal variations were not evident (Hollaar et al, 2021;Huang et al, 2024). The lack of suitable environments for survival at that time resulted the low amount of vegetation.…”

Section: Regional Wildfire Trendsmentioning

confidence: 99%

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Orbital-scale climate dynamics impacts on Gzhelian peatland wildfire activity in the Ordos Basin

Du,

Lv,

Zhang

et al. 2024

Preprint

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Abstract. The Carboniferous, an important coal-forming period in geological history, was characterized by extensive vegetation and high oxygen levels. Numerous wildfire evidence suggests that high frequency of wildfire occurred at that time, specifically in peatlands. However, the control mechanisms for changes in wildfire activity in peatlands during this period are still not clearly understood. In this study, evidence from the Gzhelian in the Ordos Basin, such as the inertinite/vitrinite (I/V) ratio, indicated the existence of different frequencies of wildfire activity at that time. The CaO/MgO and CaO/MgO • Al2O3 climate indicators revealed that high-frequency wildfires mainly occur in warm and humid climates. Based on former age constraints, we deduced that orbital cycles (long eccentricity) controlled the climate influence on peatland wildfires during the Gzhelian. When eccentricity was high, abundant sunshine and frequent rainfall led to warmer and more humid peatlands. The latter environments were more favourable for vegetation development, leading to increased fuel loads, which in turn led to more frequent wildfires. Moreover, the Gzhelian global wildfire records, showed that evidence of wildfire during this period was mainly located in areas with abundant tropical vegetation, supporting the view that wildfire activity during this period was mainly controlled by the fuel loads. Although Hg could be produced by peatland wildfires, but our results show that Hg was mainly from frequent volcanic activity during this period.

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Section: Regional Wildfire Trendsmentioning

confidence: 99%

“…8a). When the eccentricity was at a maximum, the Earth received sufficient insolation, the climate was warm and humid, and seasonal variations were evident (Hollaar et al, 2021;Huang et al, 2024). Suitable environments lead to the proliferation of vegetation, which in turn accumulate large amounts of fuel.…”

Section: Regional Wildfire Trendsmentioning

confidence: 99%