scholarly journals Refining the Formation and Early Evolution of the Eastern North American Margin: New Insights From Multiscale Magnetic Anomaly Analyses

2017 ◽  
Vol 122 (11) ◽  
pp. 8724-8748 ◽  
Author(s):  
John A. Greene ◽  
Masako Tominaga ◽  
Nathaniel C. Miller ◽  
Deborah R. Hutchinson ◽  
Matthew R. Karl
Keyword(s):  
Magnetic Anomaly ◽  
North American ◽  
Early Evolution ◽  
Eastern North American Margin

scholarly journals The role of pre-magmatic rifting in shaping a volcanic continental margin: An example from the Eastern North American Margin

2020 ◽  
Author(s):  
Guy Lang ◽  
Uri S ten Brink ◽  
Deborah R. Hutchinson ◽  
Gregory S Mountain ◽  
Uri Schattner
Keyword(s):  
Continental Margin ◽  
North American ◽  
Eastern North American Margin

LONG-LIVED AND LOCALIZED POST-OROGENIC MAGMATISM ON THE EASTERN NORTH AMERICAN MARGIN: INSIGHTS FROM ZIRCON U-PB GEOCHRONOLOGY

2020 ◽  
Author(s):  
Sean T. Kinney ◽  
◽  
Scott A. Maclennan ◽  
Jacob Setera ◽  
Blair Schoene ◽  
...  
Keyword(s):  
North American ◽  
Eastern North American Margin

scholarly journals Emergence and early evolution of fungicide resistance in North American populations ofZymoseptoria tritici

2015 ◽  
Vol 64 (4) ◽  
pp. 961-971 ◽  
Author(s):  
L. K. Estep ◽  
S. F. F. Torriani ◽  
M. Zala ◽  
N. P. Anderson ◽  
M. D. Flowers ◽  
...  
Keyword(s):  
North American ◽  
Fungicide Resistance ◽  
Early Evolution

scholarly journals Taxonomic and phylogenetic review of Necrosuchus ionensis (Alligatoroidea: Caimaninae) and the early evolution and radiation of caimanines

2019 ◽  
Vol 189 (2) ◽  
pp. 657-669 ◽  
Author(s):  
Giovanne M Cidade ◽  
Daniel Fortier ◽  
Annie S Hsiou
Keyword(s):  
Phylogenetic Analysis ◽  
South America ◽  
North American ◽  
Early Evolution ◽  
Valid Species ◽  
The North ◽  
Phylogenetic Studies ◽  
First Time ◽  
Salamanca Formation

Abstract Alligatoroidea is the most species-rich crocodylomorph clade of the Cenozoic of South America, with nearly all species belonging to the Caimaninae clade. However, the earliest records of Caimaninae in South America, which are from the Palaeocene, are based mostly on incomplete specimens, which increases the importance of detailed taxonomic and phylogenetic studies on these taxa. This paper offers a taxonomic and phylogenetic review of Necrosuchus ionensis, a caimanine species from the Salamanca Formation of the Palaeocene of Argentina. Necrosuchus ionensis is considered a valid species, albeit with a different diagnosis from that proposed by previous authors. The phylogenetic analysis shows, for the first time, that N. ionensis belongs to the derived Caimaninae clade Jacarea. However, a better understanding of the Jacarea clade is needed, and alternative placements for N. ionensis might be considered. Nevertheless, the placement of N. ionensis as a derived caimanine raises interesting perspectives on the early evolution and radiation of caimanines, which are thoroughly discussed in this paper together with other results obtained in this study, such as the recovery of the North American caimanines Bottosaurus and Tsoabichi as a clade.

U.S. National Magnetic Anomaly Survey Specifications Workshop Report

Geophysics ◽  
1979 ◽  
Vol 44 (5) ◽  
pp. 991-992
Author(s):  
William J. Hinze
Keyword(s):  
Magnetic Anomaly ◽  
North American ◽  
Executive Committee ◽  
Ad Hoc ◽  
Magnetic Data ◽  
Aeromagnetic Data ◽  
Workshop Report ◽  
The North ◽  
Anomaly Map ◽  
The U.S

The National Magnetic Anomaly Map (NMAM) Committee, which was formed as an ad hoc committee in 1975 by the SEG Executive Committee, has recommended a multistage program for improving the aeromagnetic data of the U.S. On behalf of the geoscience community, the committee and the U.S. Geological Survey are currently engaged in the preparation of a photo‐composite map of the U.S. derived from publicly available data plus regional magnetic data contributed from the private sector. This map is at present being compiled and is to be pulished by the U.S.G.S. at a scale of [Formula: see text]. Eventually, utilizing this map, the committee plans to assist in the preparation of a North American magnetic anomaly map to supplement the North American tectonic map and the proposed continental gravity anomaly map.

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