The thickness of cover sequences in the Western Desert of Iraq from a power spectrum analysis of gravity and magnetic data

Mousa, Ahmed S.; Mickus, Kevin L.; Al-Rahim, Ali M.

doi:10.1016/j.jseaes.2017.02.022

Cited by 13 publications

(6 citation statements)

References 29 publications

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“…Metode ini juga tidak terlalu sensitif terhadap anomali yang saling tumpang tindih serta noise frekuensi tinggi karena menggunakan analisisi panjang gelombang dari anomaly (Hinze et al, 2010). Metode ini terbukti dapat memberikan gambaran kedalaman sumber anomali dengan lebih baik dibandingkan metode yang lain sesuai dengan penelitian-penelitian terdahulu (Ali et al, 2017;Handyarso & Kadir, 2017;Mousa et al, 2017 Kosaroglu et al, 2016;Nwankwo & Ene, 2020;Tao et al, 2019;Zaher et al, 2018) Penelitian dilakukan untuk menganalisis kedalaman sumber di daerah Godean, Yogyakarta Penelitian ini berfokus pada penggunaan metode Statistical Spectral Techniques pada penentuan kedalaman lapisan di daerah Godean.…”

Section: Pendahuluanunclassified

Analisis Kedalaman Sumber Anomali Gravitasi menggunakan Spectral Statistical Technique di daerah Godean Yogyakarta

Zakaria

2021

JFF

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ABSTRAK -Analisis kedalaman sumber anomali gravitasi menggunakan Spectral Statistical Technique telah dilakukan di daerah Godean, Yogyakarta. Penelitian ini dilakukan untuk mengetahui kedalaman formasi di daerah penelitian. Penelitian ini menggunakan 56 titik pengukuran gravitasi yang tersebar dalam 2 lintasan sepanjang 12 km berarah timur barat. Analisa kedalaman dilakukan dari profil data Gravitasi hasil pengolahan, yaitu profil Anomali Bouguer Lengkap. Spectral Statistical Technique digunakan sebagai metode penentuan kedalaman dengan menghitung kemiringan grafik Ln (PS) vs k. Hasil dari perhitungan tersebut diperoleh kemiringan 2 jenis anomali, yaitu anomali dalam dan anomali dangkal. Anomali dalam memiliki kemiringan -9704, sedangkan anomali dangkal memiliki kemiringan -279. Kedalaman sumber anomali di daerah penelitian memiliki nilai 770 m untuk anomali dalam yang diinterpretasikan sebagai formasi Nanggulan, dan 22 m untuk anomali dangkal yang diinterpretasikan sebagai Endapan Gunungapi Merapi Muda.

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Section: Pendahuluanunclassified

Analisis Kedalaman Sumber Anomali Gravitasi menggunakan Spectral Statistical Technique di daerah Godean Yogyakarta

Zakaria

2021

JFF

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“…Ravat et al, 2007, Bonde et al, 2014, this is still a point of confusion: some publications seem to have wrong corrections because their equations and wavenumber units are not consistent between them (e.g. Dolmaz et al, 2005a;Qingqing et al, 2008;Bilim et al, 2011;Hisarli et al, 2011, Githiri et al, 2012Saleh et al, 2012;Hsieh et al, 2014;Afshar et al, 2016;Mousa et al, 2017;Aydemir et al, 2018;Quintero et al, 2019), some others use a wrong unit system (e.g. Azab, 2014;Usman et al, 2018).…”

Section: Unit Systemsmentioning

confidence: 99%

“…They calculate several Z t and Z o in different ranges of n, arguing that the different slopes observed in the spectrum reflect the distinct layers involved (e.g Connard et al, 1983;Hildenbrand et al, 1993;Nwobgo, 1998;Ebbing et al, 2009;Abbass & Mallam, 2013;. Guimaraes, 2014;Azab, 2014;Saibi et al, 2015;Gomes et al, 2015;Harrouchi et al, 2016;Abderbi et al, 2017;Mousa et al, 2017). However, the theoretical background for such interpretations is not clear, as it contradicts the Downloaded from https://academic.oup.com/gji/article-abstract/doi/10.1093/gji/ggaa361/5881306 by guest on 05 August 2020…”

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confidence: 99%

Review of Curie point depth determination through different spectral methods applied to magnetic data

Demarco

Prezzi

Bettucci

2020

Geophysical Journal International

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Summary Spectral methods have been applied for more than 40 years to calculate the depth to magnetic sources and the Curie point depth or Moho depth. Unfortunately, conceptual, theoretical and methodological errors, as well as, subjective approaches and lack of rigor in the application of the method are common. This has affected reproducibility, credibility and confidence in this method. We carried out a detailed mathematical and methodological revision of the spectral methods (centroid, spectral peak, forward and fractal methods) applied to magnetic data for the determination of the depth to magnetic sources. Moreover, a systematic analysis of more than 110 articles was done in order to compile and compare the different approaches and values of key parameters used by different authors in their calculations. We discuss difficulties, conditions and methodological procedures, as well as several misapplications and misinterpretation of the different methods.

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“…This Mesopotamia intercontinental basin was developed inside the Arabian plate and to the west of the Zagros thrust zone. Therefore, the Kifl area was exaggerated by those movements and located on the west flank of the Mesopotamia basin (Buday and Jassim, 1987;Jassim and Goff, 2006;Mousa et al, 2017). The gravity profile of line 4 (Al-Farhan et al, 2019, Fig.…”

Section: Parametersmentioning

confidence: 99%

Parameters estimation from the gravity anomaly caused by the two-dimensional horizontal thin sheet applying the global particle swarm algorithm

Essa

Géraud

2020

Journal of Petroleum Science and Engineering

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A global particle swarm algorithm utilized to assess the inverted two-dimensional horizontal thin sheet parameters from the gravity anomaly profile based on applying the second moving average method. The using of the second moving average method has more advantageous than using the Bouguer gravity anomaly because this method has a capability in eliminating the regional field up to third-order impeded in the Bouguer anomaly. This algorithm is applied to interpret the gravity anomaly profile, i.e., estimating the depth, the width, the thickness, the density contrast and the origin location of the buried structure. The efficacy and stability of this method are investigated and exposed for utilizing free-noise and noisy synthetic examples. Real gravity data associated with oil and gas and mineral exploration from three different locations around the world is interpreted. The evaluated time to discovering this appropriate clarification is very short and the estimated parameters contrast the view that the proposed method is applicable for real exploration. It can extract the inverse parameters which have a geologic and economic significance.

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The thickness of cover sequences in the Western Desert of Iraq from a power spectrum analysis of gravity and magnetic data

Cited by 13 publications

References 29 publications

Analisis Kedalaman Sumber Anomali Gravitasi menggunakan Spectral Statistical Technique di daerah Godean Yogyakarta

Analisis Kedalaman Sumber Anomali Gravitasi menggunakan Spectral Statistical Technique di daerah Godean Yogyakarta

Review of Curie point depth determination through different spectral methods applied to magnetic data

Parameters estimation from the gravity anomaly caused by the two-dimensional horizontal thin sheet applying the global particle swarm algorithm

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