Results 61 to 70 of about 8,887 (226)
Age-dependent seismic thickness and mechanical strength of the Australian lithosphere [PDF]
, 2002 We present constraints on the regional variations of the seismic and mechanical thickness of the Australian lithosphere. We infer the seismic thickness from a waveform tomographic model of S-wave speed, and as a proxy for the elastic thickness we use the
Simons, FJ, van der Hilst, RD
core
Structure of the upper mantle in the north-western and central United States from USArray S-receiver functions [PDF]
, 2015 We used more than 40 000 S-receiver functions recorded by the USArray project to study the structure of the upper mantle between the Moho and the 410 km discontinuity from the Phanerozoic western United States to the cratonic central US.
Kind, R. +3 more
core +3 more sources
Meteoritics &Planetary Science, EarlyView.Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson +3 more
wiley +1 more source
, 2002 EarthScope applies modern observational, analytical, and telecommunications technologies to investigate the structure and evolution of the North American continent and the physical processes controlling earthquakes and volcanic eruptions.
Michelle Hall-Wallace
core +1 more source
Mantle upwellings above slab graveyards linked to the global geoid lows [PDF]
, 2010 The global geoid is characterized by a semi-continuous belt of lows that surround the Pacific Ocean, including isolated minima in the Indian Ocean, Ross Sea and northeast Pacific and west Atlantic oceans. These geoid lows have been attributed to Mesozoic
Gurnis, Michael +2 more
core +1 more source
Opportunities for targeted, small‐scale law reform in marine and coastal restoration
Restoration Ecology, EarlyView.Across the globe, law reform is being considered as a mechanism to support, guide, and encourage the upscaling of ecological restoration. While high‐profile examples like the European Nature Restoration Law show the value of large‐scale law reform, this scale of law reform will not be feasible or politically tractable everywhere.
Justine Bell‐James +3 more
wiley +1 more source
A new chronology for the Moon and Mercury
, 2009 In this paper we present a new method for dating the surface of the Moon, obtained by modeling the incoming flux of impactors and converting it into a size distribution of resulting craters.
Anderson +18 more
core +1 more source
Zoologica Scripta, EarlyView.ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi +10 more
wiley +1 more source
The development of magmatism along the Cameroon Volcanic Line: evidence from seismicity and seismic anisotropy [PDF]
, 2014 The Cameroon Volcanic Line (CVL) straddles the continent-ocean boundary in West Africa but exhibits no clear age progression. This renders it difficult to explain by traditional plume/plate motion hypotheses; thus, there remains no consensus on the ...
Bastow, I.D. +5 more
core +1 more source
Archaean and Proterozoic diamond growth from contrasting styles of large-scale magmatism [PDF]
, 2017 Precise dating of diamond growth is required to understand the interior workings of the early Earth and the deep carbon cycle. Here we report Sm-Nd isotope data from 26 individual garnet inclusions from 26 harzburgitic diamonds from Venetia, South Africa.
Chinn, Ingrid L. +5 more
core +3 more sources