Results 101 to 110 of about 4,976,259 (186)
Abstract Apparent polar wander paths (APWPs) synthesized from paleomagnetic data are foundational to our understanding of the long‐term motions of lithospheric plates. Recent progress has highlighted the advantages of developing such paths from paleomagnetic sites that provide individual snapshots of the ancient geomagnetic field.
Yiming Zhang +5 more
wiley +1 more source
Chronology and Genesis of Fine-grained Granite in the Southern Area of Le’an, Central Jiangxi
[Objective] This study investigates the petrogenesis and tectonic setting of fine-grained granites exposed in the southern Le'an area. Determining the origin and emplacement environment of these granites is important for understanding regional magmatic ...
CHEN Yu +3 more
doaj +1 more source
Labrador Coastal Current Variability During the Holocene
Abstract The Labrador Coastal Current (LCC) is a buoyancy driven current comprised of outflows from Baffin Bay and Hudson Bay that transports freshwater and nutrients to the Scotian Shelf and Gulf of Maine in the NW Atlantic. This study reconstructs Holocene flow speeds over the Labrador Shelf, using the sortable silt index at two core sites off ...
Adam J. White +7 more
wiley +1 more source
Dominant Glacial Control on Plio‐Pleistocene to Recent Exhumation of the Kyrgyz Range (Tien Shan)
Abstract The evolution of mountain ranges results from complex interactions between tectonics and climate, yet their relative contributions to exhumation can be difficult to discern. Previous thermochronological studies in the Kyrgyz Range (Tien Shan) attributed late Cenozoic rapid exhumation primarily to increased tectonic shortening without ...
A. Mariotti +10 more
wiley +1 more source
Abstract The Coastal Cordillera of northern Chile, in the forearc of the Andean subduction zone, provides an ideal site to evaluate exhumation above the oldest active subduction under extreme aridity. This range lies parallel to a sediment‐starved trench, has experienced hyperaridity since the Miocene, and is transected by the ∼1,000‐km‐long Atacama ...
T. F. Aránguiz‐Rago +2 more
wiley +1 more source
Abstract The Fennoscandian Shield potentially hosts the longest continuous habitable conditions for Earth's deep biosphere. Billion‐year equilibrium freeboard conditions of cratons and the longevity of deep biosphere microbial communities are directly related through the thermal histories of rocks that host these communities.
Josh Isaacs +4 more
wiley +1 more source
Lithology and provenance of late Eocene - Oligocene sediments in eastern Taranaki Basin margin and implications for paleogeography [PDF]
The latest Eocene and Oligocene was a time of marked paleoenvironmental change in Taranaki Basin, involving a transition from the accumulation of coal measures and inner shelf deposits to the development of upper bathyal environments. Up until the end of
Hopcroft, Bradley Scott
core
Abstract The mechanisms by which new subduction zones form remain highly debated. Here we use Permo‐Triassic strata to evaluate potential mechanisms for initiation of the Talkeetna‐Bonanza Arc of the northern North American Cordillera. New mapping and analysis of Permian and Upper Triassic strata on the Alaska Peninsula suggest a period of uplift ...
Brandon M. Keough +2 more
wiley +1 more source
Automated particle analysis of D.B. Cooper's tie
Abstract Automated particle analysis (APA) using scanning electron microscopy (SEM) and energy‐dispersive x‐ray spectrometry (EDS) is a well‐known method in forensics, especially as it is applied to gunshot residue analysis. Here we describe the analysis of particles lifted from D.B. Cooper's tie, which was left on the hijacked plane in 1971.
Thomas G. Kaye, Kent L. Rhodes
wiley +1 more source
Integrated detrital zircon U–Pb, Nd–Sr isotopes and thermochronology record western Indian‐margin provenance reorganisation. Late Cretaceous–Palaeocene sediment supply was Indian‐affinity; Asian‐affinity input appeared across the Palaeocene–Eocene transition (~56.5–54.7 Ma), suggesting India–Asia collision was underway, while mixed provenance persisted
Nowrad Ali +8 more
wiley +1 more source

