Exploring Exploration Play Models with FTG Gravity Data

Murphy, Colm; Dickinson, Jade L.

doi:10.3997/2214-4609-pdb.241.murphy_paper1

Cited by 12 publications

(16 citation statements)

References 2 publications

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“…explorations (e.g. Mataragio and Kieley 2009;Murphy and Dickinson 2009). The full Marussi tensor is a richer source of information than standard single gravity anomalies.…”

Section: Mass Distribution Of Earth Landforms Determined By Aspects Omentioning

confidence: 99%

Comparative analysis of the impact of slope inclination and altitude on long-term land use changes in Czechia

Štych¹

2016

Auc Geographica

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Correlations of large-scale landform patterns with some aspects of the geopotential as computed from the global gravity field model EGM 2008, particularly the radial second derivatives of the disturbing gravitational potential Γ 33 , the strike angle θ S and virtual deformations of the ellipse of deformation, are demonstrated. Selected regions with documentation of aspects from EGM 2008 are the Nepal Himalaya and its neighbouring areas, the collision zone of East-Asian and West-Pacific lithospheric plates, the contact region of northeastern Africa, southwestern Asia and southeastern Europe, morphotectonic contact between the Bohemian Massif, Eastern Alps and the Western Carpathians in Central Europe and regions of ancient rapid events indicated by relics of large impact craters Vredefort, Chicxulub and Popigai. It is suggested that landform patterns with very conspicuous combinations of significantly high positive or negative values of Γ 33 are under the strong influence of rapid and/or intensive geomorphic processes. These geophysical signatures supported by values of the strike angle θ S and virtual dilatations or compressions of the ellipse of deformation reflect the regional dynamics of Earth surface evolution as characterised by a very effective integration of tectonic and climate-driven morphogenetic processes.

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“…explorations (e.g. Mataragio and Kieley 2009;Murphy and Dickinson 2009). The full Marussi tensor is a richer source of information than standard single gravity anomalies.…”

Section: Mass Distribution Of Earth Landforms Determined By Aspects Omentioning

confidence: 99%

Comparative analysis of the impact of slope inclination and altitude on long-term land use changes in Czechia

Štych¹

2016

Auc Geographica

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“…The quantity 33 is best suited for target body detection; 33 helps to define isopath/density relationships of a body mass with relation to its geological setting, e.g. [10].…”

Section: Theory Data and Computationsmentioning

confidence: 99%

“…explorations (e.g. [9,10]). The full Marussi tensor is a rich source of information derived from gravity anomalies providing useful details about objects closely locating to the Earth's surface.…”

Section: Introduction and Topics Of The Studymentioning

confidence: 99%

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Gravity Disturbances, Marussi Tensor, Invariants and Other Functions of the Geopotential Represented by EGM 2008

Klokočník¹,

Kostelecký

Kalvoda

et al. 2014

JESR

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Gravity disturbances, the Marussi tensor, invariants of the gravity field, their certain ratio and other functions of the geopotential (including newly defined "virtual deformations") are computed based on the harmonic coefficients of the global gravitational field model EGM 2008. Regional examples of correlations of large-scale morphotectonic and landform patterns with some aspects of the geopotential as computed from the EGM 2008 are presented. It is suggested that morphotectonic and landform patterns with very conspicuous combinations of significantly high positive or negative values of Γ 33 are under the strong influence of rapid and/or intensive geomorphic processes. These geophysical signatures supported by values of the strike angle θ S and virtual dilatations or compressions of the ellipse of deformation reflect the regional dynamics of Earth surface evolution as characterised by very effective integration of tectonic and climate-driven morphogenetic processes.

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“…Many examples for local use of the gravity aspects can be found in the literature dealing with petroleum, metal, diamond, economic minerals, oil and gas deposits, fault location, groundwater explorations etc. [see, e.g., Saad 2006, Murphy and Dickinson 2009or Mataragio and Kieley 2009. The Marussi tensor provides more complex information than the ordinary gravity anomalies only; T zz informs about the setting (target location), the other components T ij of Γ refer to the orientation of the causative structure.…”

Section: Introductionmentioning

confidence: 99%

Candidates for volcanoes under the ice of Antarctica detected by their gravito-topographic signal

Klokočník

Kostelecký

Bezděk

et al. 2017

Annals of Geophysics

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We analysed the newest gravity field models (given in the form of spherical harmonic expansion to degree and order 2190) EIGEN 6C4 and RET 14, which consist basically from the gravity data from EIGEN 6C4 plus the bedrock topography from the Bedmap 2 model, describing the topography of the ground under the ice of Antarctica. From these models we computed the gravity anomalies, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtual deformations. We applied these results for a selected part of Antarctica; not too far from the Lake Vostok we discovered at least two objects that might be subglacial volcanoes. We present all predictors and arguments we have available to support this hypothesis, but we are well aware that the "last word" waits for other specialists. We provide geographic coordinates on the ice surface where to dig for the possible volcanoes.

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Exploring Exploration Play Models with FTG Gravity Data

Cited by 12 publications

References 2 publications

Comparative analysis of the impact of slope inclination and altitude on long-term land use changes in Czechia

Comparative analysis of the impact of slope inclination and altitude on long-term land use changes in Czechia

Gravity Disturbances, Marussi Tensor, Invariants and Other Functions of the Geopotential Represented by EGM 2008

Candidates for volcanoes under the ice of Antarctica detected by their gravito-topographic signal

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