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Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract The Toarcian Oceanic Anoxic Event (T‐OAE, ∼183 Ma) was characterized by globally enhanced organic‐carbon burial and a negative carbon‐isotope excursion (N‐CIE). However, the role of marine productivity at this time, and its spatiotemporal variability, is unclear.
Wenhan Chen +11 more
wiley +1 more source
Discovery of Repeating Shallow Moonquakes in the Apollo Lunar Seismic Data
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract Shallow moonquakes have been considered unique due to their large magnitudes and affinities with intraplate earthquakes. However, the small number of detections (<80 events) has prevented detailed characterization. In this study, I identified a pair of repeating shallow moonquakes by analyzing a recently updated moonquake data set.
Keisuke Onodera
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract Groundwater flow regulated by deep faults remains challenging to trace due to structural complexity. This study applies the noble gas tracer 222Rn combined with hydrochemistry and stable isotopes (δ2H, δ18O) to distinguish circulation patterns of geothermal springs along a major fault in the Tibetan Plateau.
Xiaoyan Shi +7 more
wiley +1 more source
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Prediction of meteoroid stream structure based on meteoroid fragmentation
Journal of Astrophysics and Astronomy, 2020Every day, large number of meteoroids enter the Earth’s atmosphere and deposit their mass either in atomic form or in ionic form depending on whether it has undergone ablation or fragmentation. The heavier meteoroids undergo fragmentation while the lighter ones are more prone to ablate.
K. SANJEEV KUMAR +3 more
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Earth, Moon, and Planets, 2004
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Solar System Research, 2018
The interaction between a large meteoroid and the atmosphere is modeled as its destruction into a cloud of fragments and vapors moving with a common shock wave. Under the action of aerodynamic forces the shape of this cloud is deformed—it is expanded in the direction transverse to the motion and compressed in the longitudinal direction.
I G Brykina, Brykina I G
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The interaction between a large meteoroid and the atmosphere is modeled as its destruction into a cloud of fragments and vapors moving with a common shock wave. Under the action of aerodynamic forces the shape of this cloud is deformed—it is expanded in the direction transverse to the motion and compressed in the longitudinal direction.
I G Brykina, Brykina I G
exaly +2 more sources
RADAR MEASUREMENTS OF METEOROID DECELERATIONS
Earth, Moon, and Planets, 2004Measurements of meteoroid velocities and decelerations have been obtained from post-t 0 diffraction patterns present in echo signatures obtained from the multi-site AMOR radar operated at the University of Canterbury’s research facility. The system allows the sampling of a meteoroid’s velocity at separated points along the body’s trajectory to yield ...
W. J. Baggaley, J. Grant
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Meteoroid Storms Detected on the Moon
Science, 1976Seismometers on the moon have detected several brief periods of enhanced meteoroid-impact activity, believed to represent encounters of the moon with "clouds" of objects in the kilogram range. The latest and most active encounter, in June 1975, is interpreted as a meteoroid cloud of diameter 0.1 astronomical unit and total mass 10
F K, Duennebier +3 more
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