Results 111 to 120 of about 164,975 (347)
Evidence for Localized High Temperature Hydrothermal Fluid Flow within the Sub-Crater Environment of the Rochechouart Impact Structure: Observations from a Polymict Breccia Dike [PDF]
, 2015 Hypervelocity impacts into volatilebearing terrestrial targets can initiate hydrothermal circulation for a finite period of time; evidence for this is preserved in approximately one-third of impact structures on Earth [1, 2].
Lambert, P., Lee, M.R., Simpson, S.L.
core
Clinical periodontal diagnosis
Periodontology 2000, EarlyView., 2023 Abstract Periodontal diseases include pathological conditions elicited by the presence of bacterial biofilms leading to a host response. In the diagnostic process, clinical signs such as bleeding on probing, development of periodontal pockets and gingival recessions, furcation involvement and presence of radiographic bone loss should be assessed prior ...
Giovanni E. Salvi +5 more
wiley +1 more source
On the detection of the Wilkes Land impact crater
Earth, Planets and Space, 2018 The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial.
Jaroslav Klokočník +2 more
doaj +1 more source
Whump, Slosh, Slosh, Slosh—Filling the Crater That Did in the Dinosaurs
AGU Advances, 2020 Drilling into the Chicxulub crater (Yucatan, Mexico) reveals the dramatic aftermath of the dinosaur‐killing meteorite impact. Previous views of this event have mainly come from places well away from Ground Zero, where we see the extinction of ~70% of ...
Richard Norris
doaj +1 more source
El Bahr: A Prospective Impact Crater [PDF]
Journal of the Washington Academy of Sciences, 2018, 2020 This preliminary investigation addresses the discovery of an unidentified crater located south of the Sahara Desert between Qaret Had El Bahr and Qaret El Allafa, Egypt. The unidentified crater (hereafter tentatively named El Bahr Crater) was discovered during a terrain analysis of the Sahara Desert. El Bahr Crater is located Southwest Al-Jiza Giza and
arxiv
An analytical model of crater count equilibrium [PDF]
, 2017 Crater count equilibrium occurs when new craters form at the same rate that old craters are erased, such that the total number of observable impacts remains constant. Despite substantial efforts to understand this process, there remain many unsolved problems.
arxiv +1 more source
Self-organized rock textures and multiring structure in the Duolun crater [PDF]
The Duolun impact crater is a multiring basin located 200 km north of Beijing. From the center to the edge of the crater there are innermost rim, inner ring, outer rim, and outermost ring.
Wu, Siben, Zhang, Jiayun
core +1 more source
Impact crater morphology and the structure of Europa's ice shell
, 2017 We performed numerical simulations of impact crater formation on Europa to infer the thickness and structure of its ice shell. The simulations were performed using iSALE to test both the conductive ice shell over ocean and the conductive lid over warm ...
Johnson, Brandon C. +1 more
core +1 more source
Engineered Living Energy Materials
Interdisciplinary Materials, EarlyView.Engineered living energy materials (ELEMs) are nascent research frontier for enabling sustainable energy conversion and storage. These materials exhibit unique characteristics such as self‐regeneration, biodegradability, environmental response, and evolutionary adaptability. This paper overviews different energy conversion bio‐modules, summarizes their
Xinyi Yuan +14 more
wiley +1 more source
Environmental racism and air pollution: Pre and post the COVID‐19 economic shutdown
Review of Policy Research, EarlyView., 2023 Abstract Decades of research demonstrates that minoritized groups are disproportionately affected by swathes of harmful pollutants, including air pollution, even controlling for low income. Would significantly reducing individual car traffic help reduce the EJ gap?
Heather E. Campbell +3 more
wiley +1 more source