scholarly journals Transition zone thickness beneath Indonesia as inferred using the receiver function method for data from the JISNET regional broadband seismic network

2002 ◽  
Vol 29 (7) ◽  
Author(s):  
Tomoharu Saita
Keyword(s):  
Transition Zone ◽  
Function Method ◽  
Receiver Function ◽  
Seismic Network ◽  
Receiver Function Method

No polarity switch? Continental subduction of European crust below the Eastern Alps imaged by receiver functions

2020 ◽  
Author(s):  
Stefan Mroczek ◽  
Frederik Tilmann ◽  
Xiaohui Yuan ◽  
Jan Pleuger ◽  
Ben Heit
Keyword(s):  
Receiver Function ◽  
Eastern Alps ◽  
Receiver Functions ◽  
Opposite Polarity ◽  
Seismic Network ◽  
Study Region ◽  
Teleseismic Tomography ◽  
Minimum Depth ◽  
The Alps ◽  
Receiver Function Method

<p>In the Eastern Alps, teleseismic tomography suggests that there is a switch from European subduction in the west to Adriatic subduction in the east. The dense SWATH-D seismic network is located in the central-eastern Alps between around 10°E and 14.5°E where a change in the dip direction was suggested to occur (e.g. Lippitsch et al. 2003; Mitterbauer et al. 2011). The receiver function method is particularly sensitive to velocity contrasts and so is suited to imaging the interfaces associated with subduction. New receiver function migrations from SWATH-D stations (supplemented by the AlpArray Seismic Network and the EASI profile) show no evidence for Adriatic subduction in the Eastern Alps. Instead, a southward dipping interface [or pair of interfaces with opposite polarity] which we interpreted as subducting  European lower crust can be traced below the Eastern Alps to a minimum depth of 120 km along the extent of SWATH-D. This suggests that in the Alps the polarity flip in subduction does not occur or is located east of our study region beyond 14.25°E, much further east than tomography suggests.</p>

scholarly journals Earth crustal analysis of Northwest Sabah region inferred from receiver function method

Warta Geologi ◽  
2020 ◽  
Vol 46 (2) ◽  
pp. 59-68
Author(s):  
Abdul Halim Abdul Latiff ◽  
◽  
Faridah Othman
Keyword(s):  
Function Method ◽  
Receiver Function ◽  
Receiver Function Method

scholarly journals Early Results of Time Domain Receiver Function Data Processing in Mt Merapi and Mt Merbabu

2021 ◽  
Vol 873 (1) ◽  
pp. 012055
Author(s):  
A K Ilahi ◽  
M F R Auly ◽  
D A Zaky ◽  
A Abdullah ◽  
R P Nugroho ◽  
...  
Keyword(s):  
Data Processing ◽  
Frequency Domain ◽  
Time Domain ◽  
Function Method ◽  
Receiver Function ◽  
Vertical Component ◽  
Complex Signals ◽  
Function Data ◽  
Early Results ◽  
Receiver Function Method

Abstract The receiver function method is a method to image the earth subsurface by utilizing Ps conversion waves that are formed due to the velocity boundary. In general, the receiver function method estimates depth of structures such as the mantle-crust boundary by deconvoluting the vertical component from the horizontal component. Typical receiver function data processing is done in the frequency domain where the deconvolution process can be seen as a division between two components. In this study, we tried to reprocess the data using a deconvolution technique in time domain, popularly known as iterative time-domain deconvolution. The principle of iterative time domain deconvolution consists of iterative cross-correlation between the horizontal and vertical component. We use data from the DOMERAPI seismic station network located in the vicinity of Mt Merapi and Mt Merbabu. Mt Merapi is one of the most active volcanoes in the world with frequent eruptions and located at the ring of fire chain volcano in Indonesia. Note that the previous receiver function study in this region showed complex signals at some stations that may be related to sediment at shallow sediment and possible layers of low velocity zone that interfering main signal for a crust-mantle boundary. Our current results show iterative time domain RFs have clearer and smoother signal than the frequency domain that help interpreting the waveform signals. We estimate a range of crust thickness between 26-31 km near Mt Merapi. However, we noticed that iterative time domain calculation requires longer computation time and input signal.

Deep velocity structure of the southern edge of the Siberian Craton and Baikal Rifting

2019 ◽  
Vol 484 (1) ◽  
pp. 93-97
Author(s):  
V. V. Mordvinova ◽  
М. М. Кobelev ◽  
М. А. Chritova ◽  
Е. Ch. Тurutanov ◽  
Е. А. Коbeleva ◽  
...  
Keyword(s):  
Surface Structure ◽  
Siberian Craton ◽  
Function Method ◽  
Velocity Structure ◽  
Receiver Function ◽  
Mobile Belt ◽  
Central Asian ◽  
P Receiver Function ◽  
Receiver Function Method ◽  
Central Asian Mobile Belt

The velocity structure of the southern edge of the ancient Siberian craton has been modeled to an 80-km depth based on teleseismic records of a P-receiver function method (P–S). The correlation between the deep and the surface structure determined through modeling is indicative of the submeridional convergence of the south-western edge of the Siberian craton with the Central Asian mobile belt. A sublatitudinal crust extension in the contact zone caused by such convergence may initiate Baikal rifting at the craton’s southeastern edge.

CRUSTAL STRUCTURE OF SE TIBET FROM RECEIVER FUNCTION METHOD

2018 ◽  
Author(s):  
Liangshu Wang ◽  
◽  
Xu Cao ◽  
Ning Mi ◽  
Dayong Yu ◽  
...  
Keyword(s):  
Crustal Structure ◽  
Function Method ◽  
Receiver Function ◽  
Se Tibet ◽  
Receiver Function Method
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