Results 51 to 60 of about 802 (179)
Paleosecular Variation Constraints on Geomagnetic Field Morphology at ca. 1100 Ma
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Paleosecular variation provides a statistical test of long‐term geomagnetic field morphology, but its behavior across Precambrian polarity regimes remains poorly constrained. We compile a virtual geomagnetic pole dispersion data set spanning 1130–1070 Ma and apply nonlinear Model G fitting to evaluate field structure across the interval ...
Hanqing Zhao +7 more
wiley +1 more source
Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.Abstract Cambrian Series 2 represents a key interval for documenting the evolution and diversification of early biomineralized skeletal animals. In this interval, small shelly fossils (SSF) provide an essential archive for regional biostratigraphy and intercontinental correlation.
Yeongju Oh +2 more
wiley +1 more source
Laurentia (Laurentina) ruficornis Malaise 1937
, 2014 Laurentia (Laurentina) ruficornis Malaise, 1937 A valid species, Aglaostigma (Neurosiobla) ruficorne (Malaise, 1937). Types. Laurentia (Laurentina) ruficornis Malaise, 1937b: 46. Syntypes: 14 ♂, 8 ♀ “Burma: Yunnan frontier, alt. 2.000 m.; China, prov. Szechuan Tatsienlu and Koutchéou” Type locality: Myanmar: Kachin State: Kambaiti (ca. 25.399°N, 98.118°
Taeger, Andreas +2 more
openaire +2 more sources
The Gulf of Mexico and the southern margin of Laurentia [PDF]
Geology, 2009 [Mickus et al. (2009][1]; p. 387 in this issue of Geology ) call fresh attention to the origin of the Gulf of Mexico, and particularly to the geodynamic processes that formed its rifted margin north of the oceanic crust forming its central expanse.
openaire +1 more source
Journal of Metamorphic Geology, Volume 44, Issue 6, Page 470-491, July 2026.ABSTRACT In the middle to lower continental crust, mineral reactions can play a key role in controlling rheological behaviour by generating fine‐grained, mechanically weak domains. In granulite‐facies rocks from Krossøy (Bergen Arcs, Norway), we document how garnet breakdown produced interconnected networks of orthopyroxene + plagioclase ± spinel that ...
Lorena H. Filiberto +4 more
wiley +1 more source
Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: Origin and evolution of the Kangâmiut mafic dyke swarm, West Greenland [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2006 The Kangâmiut dyke swarm in West Greenland intruded Archaean terrains at 2.04 Ga, and its northern portion was subsequently metamorphosed to granulite facies during the Nagssugtoqidian orogeny(c. 1.8 Ga).
Lesher, Charkes E., Mayborn, Kyle R.
doaj
Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure
Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1213-1242, July 2026.Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark +8 more
wiley +1 more source
COMPARATIVE STUDY ON THE RIGHT TO HEALTH CARE SYSTEM PRISON LAW INTENDED TO ROMANIAN NATIONAL HEALTH LAW [PDF]
Challenges of the Knowledge Society, 2017 Health protection represents a protection measure for persons being a guaranteed right in Romania provided by the 34 Article of Romanian Constitution. The state is liable for taking measures of protecting physical and mental health, both for free persons
Florentina Laurenţia GĂIŞTEANU
doaj
Revista Mexicana de Ciencias Geológicas, 2019 Fragmentos de escleritomos de Chancelloria eros del Cámbrico medio de Sonora, México se registran por primera vez. Escleritomos de chancellóridos parcialmente articulados y escleritos aislados pertenecientes a Allonnia tintinopsis y Archiasterella sp ...
Matilde S. Beresi +3 more
doaj +1 more source
The United States Magnetotelluric Array and the National Impedance Map
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert +7 more
wiley +1 more source