Seismic anisotropy and mantle dynamics beneath the southeastern United States inferred from shear-wave splitting analysis

Systematic spatial variations of mantle azimuthal anisotropy are revealed by over 3000 pairs of high-quality shear-wave splitting parameters (fast polarization orientations and splitting times) recorded at ~400 USArray and other network stations in the SE United States (75⁰-90⁰ W, and 24⁰-40⁰ N). The fast polarization orientations observed in the continental interior are subparallel to the absolute plate motion (APM) direction of the North American plate with apparent larger-than-normal splitting times, indicating a significant asthenospheric contribution. Fast orientations parallel to the edge of the North American craton are revealed along the southern and eastern margins of the continent. A portion of the eastern coastal area shows weak anisotropy, probably indicating the existence of vertical mantle flow. The majority of the splitting measurements can be satisfactorily explained by a model involving simple shear in the boundary layer between the lithosphere and asthenosphere. The model includes three flow systems. The first is related to the continental scale APM-parallel relative movement between the lithosphere and asthenosphere which creates the APM-parallel fast orientations observed in the continental interior. The second flow system is associated with the deflection of asthenospheric flow around the edges of the craton and is responsible for the edge-parallel fast orientations observed along the southern and eastern margins of the study area. The third system is sub-vertical, possibly caused by vertically deflected flow along the eastern root of the craton, similar to the mechanism proposed by Refayee et al. (2014, doi: 10.1016/j.epsl.2013.01.031) for the western edge. It could also be related to previously proposed upwelling or down-welling flow --Abstract, page iii

What a blue eyed baby you are.

Gift of Dr. Mary Jane Esplen.Piano vocal ukulele [instrumentation]F major [key]Popular song [form/genre]Woman; photo:Jules Herbuveaux and his Guyon's Paradise Orchestra [illustration]Politzer [engraver]Publisher's advertisement on front inside cover & back cover [note

I love to waltz (meow) on a night like this with stars in the [first line of chorus]

Performance Medium: Piano, Voice and Chord

Angel eyes.

Gift of Dr. Mary Jane Esplen.Sung and introduced by Jack Osterman [note]Piano vocal [instrumentation]Many are the days I've spent in rambling [first line]Angel eyes I'm mighty glad I found you [first line of chorus]E flat major [key]Moderato [tempo]Popular song [form/genre]Photograph: Jack Osterman [illustration]Dedicated to Kathryn Osterman [dedication]Whaley, Royce & Co., Toronto [dealer stamp]Publisher's advertisement on front inside cover & back cover [note

A Waltz in the moonlight and you.

Gift of Dr. Mary Jane Esplen.Piano vocal [instrumentation]Just a summer romance where the roses grew [first line]That moonlight waltz sweet moonlight waltz [first line of refrain]C major [key]Tempo di Valse [tempo]Popular song [form/genre]Man, woman [illustration]Morgan [engraver]Publisher's advertisement on front inside cover & last page [note

He sail thru the air with the greatest of ease, that daring [first line of chorus]

Performance Medium: Piano, Voice and Chord

Little precious head so curly, sleep until the rose is pearly [first line of chorus]

Performance Medium: Piano, Voice and Chord

We lived our little drama, we kissed in a field of white [first line of chorus]

Performance Medium: Piano, Voice and Chord

He owns a public curiosity; from far and wide the people flock [first line of chorus]

Performance Medium: Piano, Voice and Chord

Moonlight love.

Gift of Dr. Mary Jane Esplen.Piano vocal [instrumentation]The night wind is caressing the willow tree [first line]You're my moonlight love like an angel [first line of chorus]B flat major [key]Moderato [tempo]Popular song [form/genre]Moon, clouds [illustration]WMitchell [engraver]Publisher's advertisement on back cover [note