Deep Seismic Reflection Imaging Using Sources of Opportunity Recorded by Dense Seismic Arrays
Başlık:
Deep Seismic Reflection Imaging Using Sources of Opportunity Recorded by Dense Seismic Arrays
Yazar:
Kim, Doyeon, author.
ISBN:
9780438027138
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (141 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Larry D. Brown Committee members: Katie Keranen; Greg McLaskey.
Özet:
The main focus of this dissertation is development of innovative approaches to the high resolution imaging of the earth that take advantage of recent advances in seismic instrumentation (dense arrays) which facilitate the unaliased recording of local earthquakes. These new methods can be applied to the study of any structures at depth as long as there is an adequate distribution of local seismic energy available for effective illumination.
Introduction places the research reported in this dissertation in the context of the broader field of seismic imaging.
Chapter 1 investigates geometries favorable to body wave imaging by interferometric analysis of distributed but known subsurface sources, with application to the aftershock sequence of the 2011 Mw 5.8 Virginia earthquake.
Chapter 2 and Chapter 3 use microseismicity recordings at the geothermal field at Krafla, Iceland, to image magmatic features at depth using two distinct approaches: seismic interferometry and reverse Vertical Seismic Profiling (rVSP). Strong reflections from a body at the same depth as magma encountered in boreholes at Krafla, Iceland were detected and mapped by both techniques. Deeper reflectors suggest a distributed system of smaller magma sills rather than a large pervasively molten feeder chamber at Krafla.
Chapter 4 reports an effort to use subduction zone earthquakes in central Alaska to produce a high resolution image of the subducting oceanic lithosphere. The results include one of the first seismic images using an interferometric method with local earthquakes to successfully image mantle structure with a greater resolution than that previously achieved with more conventional methods.
Chapter 5 of this dissertation presents the first industry scale 3D reflection image of deep intrabasement features in the United States, generated by opportunistic processing of pre-existing oil exploration data. More importantly, this work illustrates how modern, nodal industry seismic reflection surveys are routinely collecting 3D imagery that- if preserved and properly processed- can yield important new insights into the structure and evolution of the deeper parts of the earth.
Notlar:
School code: 0058
Tüzel Kişi Ek Girişi:
Mevcut:*
Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(681434.1) | 681434-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
On Order
Liste seç
Bunu varsayılan liste yap.
Öğeler başarıyla eklendi
Öğeler eklenirken hata oldu. Lütfen tekrar deneyiniz.
:
Select An Item
Data usage warning: You will receive one text message for each title you selected.
Standard text messaging rates apply.