VARIASI KEDALAMAN DISKONTINUITAS MOHO DI JAWA TENGAH DAN YOGYAKARTA BERDASARKAN DATA RECEIVER FUNCTION
Mohorovi�i� discontinuity or Moho is a boundary between the crust and upper mantle. This boundary has a characteristic that P wave velocity increased from 6,75 km/s up to 8 km/s. The velocity contrast between crust and mantle can be used to estimate the crustal thickness. Tectonic process is a fac...
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| Main Authors: | , |
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| 格式: | Theses and Dissertations NonPeerReviewed |
| 出版: |
[Yogyakarta] : Universitas Gadjah Mada
2013
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| 在線閱讀: | https://repository.ugm.ac.id/123790/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=63905 |
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| 機構: | Universitas Gadjah Mada |
| 總結: | MohoroviÄ�iÄ� discontinuity or Moho is a boundary between the crust and
upper mantle. This boundary has a characteristic that P wave velocity increased
from 6,75 km/s up to 8 km/s. The velocity contrast between crust and mantle can
be used to estimate the crustal thickness. Tectonic process is a factor that caused
different value of the crustal thickness at every region.
This research has mapped the Moho depth under 110 MERAMEX
(MERapi AMphibian EXperiment) seismic stations in central of Java and
Yogyakarta. We use stacking H-κ technique (Zhu and Kanamori, 2000) from
receiver function data of MERAMEX stations to map the depth. This technique
uses the different travel-time between the direct P wave with the Ps, PpPs and
PsPs+PpSs phase. This different travel-time can be computed using estimation of
the depth value of Moho discontinuity boundary (H) and
�
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/�
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(
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under
receiver station.
The average value of Moho depth from this research is 33,54 km and
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value approximately 1,65. The shallow Moho depth values are found at
Yogyakarta and Semarang with approximately value between 25 � 33 km. But,
the deep ones are found at Sindoro, Sumbing, Lawu and Ungaran Mountain with
approximately value between 39 � 43 km |
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