A correlation between ultra-low basal velocities in the mantle and hot spots

Science

Volumn 281, Issue 5376, 1998, Pages 546-549

  Williams, Q ^a   Revenaugh, J ^a   Garnero, E ^a,b  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CORE-MANTLE BOUNDARY; HOT SPOT; LOW VELOCITY ZONE; LOWER MANTLE; SEISMIC TOMOGRAPHY;

ARTICLE; GEOLOGY; MODEL; PRIORITY JOURNAL; PROBABILITY; SAMPLING; TOMOGRAPHY; VELOCITY;

EID: 0032563135     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.281.5376.546     Document Type: Article

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42. Standardized score (z) is defined as z = (O - E)/σ, where O is the number of hot spots (or flux) inside a velocity contour for a randomly sampled 44% of the tomographic models, E denotes the number (or flux) predicted by a binomial distribution, and σ is the standard deviation of the binomial. Zero corresponds to uncorrelated data; z ≥ 1.0 has an ∼15% likelihood of arising randomly.
43. Supported by the NSF Geophysics and Presidential Faculty Fellow programs. We thank H. Nataf and the reviewers for comments on the manuscript.