Direct observation of a p-τ curve in a slant stacked wave field

Autor:	George A. McMechan, Richard Ottolini
Rok vydání:	1980
Předmět:	business.industry Direct observation Stacking Sorting Geophone Geometry Function (mathematics) Refraction Geophysics Optics Geochemistry and Petrology Reflection (physics) business Seismogram Mathematics
Zdroj:	Bulletin of the Seismological Society of America. 70:775-789
ISSN:	1943-3573 0037-1106
DOI:	10.1785/bssa0700030775
Popis:	The well known Wiechert-Herglotz technique for computing a velocity-depth profile from refraction seismograms uses data in the form of ray parameter as a function of intercept time (a p-τ curve). The technique of slant stacking used by reflection seismologists automatically produces a p-τ curve from a common shot profile, thereby bypassing arbitrary travel-time picking and several intermediate calculations of previous methods. Successful preliminary results are presented for both synthetic and real data. This method deteriorates for widely separated geophones and where a number of apparent sources with low inter-source coherency coexist in a single profile, but is capable of completely sorting out triplications in data with less extreme contrasts without human intervention.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d1d736c5eb9845af33f609420358804 https://doi.org/10.1785/bssa0700030775 Zobrazit plný text záznamu