Browse Articles

| Nature Geoscience (original) (raw)

Article Type

Year

Tilted transverse isotropy in Earth’s inner core

A seismic tomographic model shows that the directional dependence of the travel time of seismic waves through Earth’s inner core can be explained by a spatially varying orientation of the transverse isotropy symmetry axis, which is simpler than other proposed structures.
Article27 Sept 2024

Pollution drives multidecadal decline in subarctic methanesulfonic acid

Multidecadal declines in methanesulfonic acid in arctic ice cores reflect increasing anthropogenic pollution in the industrial era rather than declining marine primary production, according to analyses of a multi-century record of methanesulfonic acid from Alaska and atmospheric modelling.

A common precursor for global hotspot lavas

An investigation of global trace-element data suggests that the parental melts of hotspot lavas are uniform in their elemental composition, consistent with derivation from a common depleted and outgassed mantle reservoir.

Volcanic crystal balls

Clinopyroxene offers clues about the inner workings of volcanic systems, as Teresa Ubide explains. Its ability to track where and when magma is stored may also help forecast eruptions.

Finite sand resource needs better governance

Sand is an overlooked resource and is being depleted at an alarming rate. Improved management of sand extraction and consumption is imperative to protect sand resources and reduce the impacts of extraction.
Editorial10 Sept 2024

The oldest parts of continents are falling apart

The processes that control the deformation and eventual destruction of Earth’s oldest continental crust are unclear. Mantle flow models suggest subduction played a role in the deformation of the North China Craton.

Craton deformation from flat-slab subduction and rollback

Mesozoic deformation of the North China Craton occurred via lithospheric thickening followed by thinning and extension triggered by flat-slab subduction and rollback, according to four-dimensional mantle flow models of the plate–mantle system.

An ensemble assessment to improve estimates of land-to-ocean carbon fluxes

A re-evaluation of global land-to-ocean carbon exports using a multi-model ensemble and a database of observations reveals that the export of carbon by rivers is 20% higher than that reported in the 2021 Intergovernmental Panel on Climate Change (IPCC) assessment. These findings underscore the important contribution of riverine carbon to the carbon budget.
Research Briefing05 Sept 2024

Spatial heterogeneity in post-fire vegetation productivity recovery and its drivers

A global analysis of post-fire vegetation productivity recovery reveals that the recovery time shows spatial variations across vegetation types and regions. The dominant factors that influence the recovery time in the majority of the global burned area are the post-fire climate conditions, such as soil moisture, vapour pressure deficit and air temperature.
Research Briefing03 Sept 2024

Graphite preserved in ancient mountain belts linked to supercontinent assembly

This study investigates the history of graphitic carbon in two ancient North American mountain belts related to Nuna supercontinent assembly. Using rhenium–osmium and uranium–lead dating, the research reveals that biogenic graphite was hydrothermally remobilized in shear zones during late orogenesis, indicating periodic carbon cycling over 200 million years.
Research Briefing02 Sept 2024