Results 21 to 30 of about 837,373 (246)
Development of an analytical model for the extraction of manganese from marine nodules [PDF]
, 2019 Multivariable analytical models provide a descriptive (albeit approximate) mathematical relationship between a set of independent variables and one or more dependent variables.
Castillo Segura, Jonathan Alejandro +5 more
core +2 more sources
Population structure of graptolite assemblages [PDF]
, 1998 Graptolite rhabdosomes display a diverse suite of morphologies. The range of morphotypes present within most moderate to high diversity assemblages from the Ordovician and Silurian is similar, despite the different taxonomic composition of the faunas at ...
Brenchley +27 more
core +1 more source
Orbital frequencies in the carbonate sedimentary record: distorted by diagenesis? [PDF]
, 2004 The most important archive of Earth’s climate change through geologic history is the sedimentary rock record. Rhythmic sedimentary alternations are usually interpreted as a consequence of periodic variations in the orbital parameters of the Earth.
Bornholdt, Stefan +2 more
core +1 more source
Review of the relationship between aggregates geology and Los Angeles and micro-Deval tests
Bulletin of Engineering Geology and the Environment, 2021 Rock aggregates constitute the enormous volume of inert construction material used around the globe. The petrologic description as igneous, sedimentary, and metamorphic types establishes the intrinsic formation pattern of the parent rock. The engineering
S. Adomako +3 more
semanticscholar +1 more source
A comprehensive study of noble gases and nitrogen in Hypatia, a diamond-rich pebble from SW Egypt [PDF]
, 2015 This is a follow-up study of a work by Kramers et al. (2013) on an unusual diamond-rich rock found in the SW side of the Libyan Desert Glass strewn field. This pebble, called Hypatia, is composed of almost pure carbon.
Andreoli, Marco A. G. +9 more
core +4 more sources
The Journal of geology, 1921 dentally were often found to show interesting nuclei around which the cement-stone had aggregated and hardened. In some cases calcspar forms septa, which radiate towards the margin of the nodule ; in others a shell or a pebble or fragment of flint forms ...
Starck, Larry T. Pleiss, Glen A. Stebens
semanticscholar +1 more source
Geology of parts of the central and eastern Clarion Clipperton Zone
Journal of maps, 2022 The Clarion Clipperton Zone (CCZ) hosts the most valuable deposit of polymetallic nodules yet discovered. International Seabed Authority exploration contractors, such as Tonga Offshore Mining Limited, Nauru Ocean Resources Incorporated and Marawa ...
J. Parianos +2 more
semanticscholar +1 more source
Reconstructing the evolution of the submarine Monterey Canyon System from Os, Nd, and Pb isotopes in hydrogenetic Fe-Mn crusts [PDF]
, 2017 Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 18 (2017):
Blusztajn, Jerzy S. +6 more
core +1 more source
Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece
The Anatomical Record, EarlyView.The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou +3 more
wiley +1 more source
“Dead Lithium” Formation and Mitigation Strategies in Anode‐Free Li‐Metal Batteries
Batteries &Supercaps, Volume 8, Issue 3, March 2025.Anode‐free lithium metal batteries, though promising due to their high energy density, face challenges from dead lithium formation. “Dead lithium”, disconnected from the anode, causes capacity loss, increased resistance, and safety risks. This review explores the origins of dead lithium, its impact on battery performance, and potential strategies for ...
Mozaffar Abdollahifar, Andrea Paolella
wiley +1 more source