Variations in continental volcanic arc emissions have the potential to control atmospheric carbon dioxide (CO2) levels and climate change on multimillion-year time scales. Here we present a compilation of ~120,000 detrital zircon uranium-lead (U-Pb) ages from global sedimentary deposits as a proxy to track the spatial distribution of continental magmatic arc systems from the Cryogenian period to the present. These data demonstrate a direct relationship between global arc activity and major climate shifts: Widespread continental arcs correspond with prominent early Paleozoic and Mesozoic greenhouse climates, whereas reduced continental arc activity corresponds with icehouse climates of the Cryogenian, Late Ordovician, late Paleozoic, and Cenozoic. This persistent coupled behavior provides evidence that continental volcanic outgassing drove long-term shifts in atmospheric CO2 levels over the past ~720 million years.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.aad5787 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A dataset of Antarctic ecosystems in ice-free lands: classification, descriptions, and maps.
Sci Data
January 2025
Centre for Ecosystem Science, School of Biological, Earth, and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
Antarctica, Earth's least understood and most remote continent, is threatened by human disturbances and climate-related changes, underscoring the imperative for biodiversity inventories to inform conservation. Antarctic ecosystems support unique species and genetic diversity, deliver essential ecosystem services and contribute to planetary stability. We present Antarctica's first comprehensive ecosystem classification and map of ice-free lands, which host most of the continent's biodiversity.
View Article and Find Full Text PDFLarge-scale and long-term wildlife research and monitoring using camera traps: a continental synthesis.
Biol Rev Camb Philos Soc
January 2025
Wildlife Observatory of Australia (WildObs), Queensland Cyber Infrastructure Foundation (QCIF), Brisbane, Queensland, 4072, Australia.
Camera traps are widely used in wildlife research and monitoring, so it is imperative to understand their strengths, limitations, and potential for increasing impact. We investigated a decade of use of wildlife cameras (2012-2022) with a case study on Australian terrestrial vertebrates using a multifaceted approach. We (i) synthesised information from a literature review; (ii) conducted an online questionnaire of 132 professionals; (iii) hosted an in-person workshop of 28 leading experts representing academia, non-governmental organisations (NGOs), and government; and (iv) mapped camera trap usage based on all sources.
View Article and Find Full Text PDFProvenance, environments, and tectonic signatures of Tanjong-Sandakan Formations, Northeast Sabah, Malaysia: Implications from sedimentology, palynology, and geochemistry.
Heliyon
December 2024
Department of Geological Engineering, Universitas Muhammadiyah Kalimantan Timur, 75243, Kalimantan Timur, Kota Samarinda, Indonesia.
Article Synopsis
- The study analyzes marginal marine deposits from the Tanjong and Sandakan formations in Northeast Sabah, focusing on sedimentology, trace and rare earth elements, hydrocarbon potential, and palynology to explore their environmental and geological history during the Early to Late Miocene.
- Four facies associations were identified in the Tanjong and three in the Sandakan formations, indicating a mix of terrestrial to shallow marine environments, with specific flora suggesting transition zones and varied redox conditions influenced by tectonic activity and sea-level changes.
- Findings show that sediment types differ between mudstones and sandstones, with mudstones reflecting active continental margins related to regional rifting, while sandstones suggest passive margins originating from older sedimentary processes
Europium anomaly as a robust geogenic fingerprint for the geographical origin of aquatic products: A case study of nori (Neopyropia yezoensis) from the Japanese market.
Food Chem
February 2025
Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan.
Rare earth element (REE) concentration patterns, while essential in geochemistry for tracing sample histories, have yet to be utilised entirely in food origin authentication. This research analysed 13 heavy metal(oid)s and REEs in Japanese edible seaweed Nori sheet samples (Neopyropia yezoensis), showing that the concentrations mirror the laver cultivation area's geological features (island arc-trench systems vs. continental crust).
View Article and Find Full Text PDFNo Future Growth Enhancement Expected at the Northern Edge for European Beech due to Continued Water Limitation.
Glob Chang Biol
October 2024
Professorship for Land-Surface-Atmosphere Interactions, Technical University of Munich, Munich, Germany.
With ongoing global warming, increasing water deficits promote physiological stress on forest ecosystems with negative impacts on tree growth, vitality, and survival. How individual tree species will react to increased drought stress is therefore a key research question to address for carbon accounting and the development of climate change mitigation strategies. Recent tree-ring studies have shown that trees at higher latitudes will benefit from warmer temperatures, yet this is likely highly species-dependent and less well-known for more temperate tree species.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!