9 results for group: basalt

Microscopic investigation of incipient basalt breakdown in soils: implications for selecting products for enhanced rock weathering

Tarrah M. Burke, Balz S. Kamber, David Rowlings ABSTRACT: Digital optical and scanning electron microscopy (SEM) was used to study advance of incipient weathering of basaltic rock particles for two enhanced rock weathering (ERW) sites in Eastern Australia and three natural basalt sites (New Zealand and Eastern Australia). At the ERW sites, weathering of amended rock particles (up to 8 mm in diameter) induced a significant increase (1–1.5 pH unit) in shallow soil pH. After 14 months of incubation at the more recent site, 6–8 mm basalt particles showed dissolution of glass and olivine while pyroxene and plagioclase remained largely fresh. No ...

Soil Rejuvenation with Crushed Basalt in Mauritius: Part 2, The fertility of basalt and its nutritional effects.

O. D’Hotman de Villiers No abstract   https://www.remineralize.org/wp-content/uploads/2025/04/1962-DHotman-Soil_Rejuvenation_PART_2_Fertility_of_Basalt-International_Sugar_Journal.pdf

SOIL REJUVENATION WITH CRUSHED BASALT IN MAURITIUS: Part 1, Consistent results of world-wide interest.

O. D’Hotman de Villiers No abstract   https://www.remineralize.org/wp-content/uploads/2025/04/1961-DHotman-Soil_Rejuvenation_PART_1_Consistent_results-International_Sugar_Journal.pdf

On the rejuvenation of tropical Iaterttes by the incorporation of basalt dust

O. D'HOTMAN DE VILLIERS ABSTRACT: 1. The work of N. Craig and P. Halais of the. Reoherches Station as well as our own research on the soils and climates of the island, having amply shown that our soils of the wet regions are in an extreme state of climatic poor, we have the idea of regenerating them by incorporating powdered basalt. 2. This idea that has worried us for several years and which seems to us to be the logical focus of the genetic study of tropical soils, will bring, we are convinced, a happy revolution in soil science under climates where atmospheric agents are the cause of a deep decomposition by hydrolysis and a rapid exhaustion ...

Further results of studies on the rejuvenation of exhausted soils in humid districts by incorporating basalt dust.

O. D’Hotman de Villiers ABSTRACT: Results are republished of the 1938-41 experiments conducted in Mauritius with powdered basalt and heavy NPK fertilizer applications on sugar-cane crops grown in exhausted lateritic soil. With these are compared the results of the 2nd series of experiments (1944-47) on the same plots, in which, after a bare fallow of 23 months, moderate N and minimum P and K applications were combined with 10 metric tons/arpent of powdered basalt. The 1937 basalt dressings had been 10, 30 and 90 metric tons. Results show a striking residual benefit, especially from the highest basalt application, affecting both cane and sugar ...

Fertilizing Value of Crushed Basalt

S. M. Feillafe 23rd Annual Report of the Sugarcane Research Station No abstract   https://www.remineralize.org/wp-content/uploads/2025/04/1952-Fertilizing_value_of_crushed_basalt-Revue_Agricole_vol_31.pdf

A REVIEW OF ORGANIC AND INORGANIC AMENDMENTS USED IN CANE CULTIVATION IN MAURITIUS: Part C

D. H. Parish, S. M. Feillafe No Abstract https://www.remineralize.org/wp-content/uploads/2025/04/1958-Parish_and_FeillafC-C.-Basalt-Dust-MSIRI_Annual_Report.pdf

Iron Chelation in Soil: Scalable Biotechnology for Accelerating Carbon Dioxide Removal by Enhanced Rock Weathering

ABSTRACT Enhanced rock weathering (EW) is an emerging atmospheric carbon dioxide removal (CDR) strategy being scaled up by the commercial sector. Here, we combine multiomics analyses of belowground microbiomes, laboratory-based dissolution studies, and incubation investigations of soils from field EW trials to build the case for manipulating iron chelators in soil to increase EW efficiency and lower costs. Microbial siderophores are high-affinity, highly selective iron (Fe) chelators that enhance the uptake of Fe from soil minerals into cells. Applying RNA-seq metatranscriptomics and shotgun metagenomics to soils and basalt grains from EW field ...

Additive effects of basalt enhanced weathering and biochar co-application on carbon sequestration, soil nutrient status and plant performance in a mesocosm experiment

ABSTRACT Co-deployment of a portfolio of carbon removal technologies is anticipated in order to remove several gigatons of carbon dioxide from the atmosphere and meet climate targets. However, co-application effects between carbon removal technologies have rarely been examined, despite multiple recent perspectives suggesting potential synergies between basalt enhanced weathering and biochar application. To study the co-application effects of basalt for enhanced weathering and biochar on carbon sequestration, along with related co-benefits and risks, we conducted a fully replicated factorial mesocosm experiment with wheat. Basalt applied alone (74 t ...