VLNDEF Project for Geodetic Infrastructure Definition of Northern Victoria Land, Antarctica

Capra, Alessandro; Dubbini, Marco; Galeandro, Annalisa; Gusella, Luca; Zanutta, Antonio; Casula, G.; Negusini, M.; Vittuari, Luca; Sarti, Pierguido; Mancini, Francesco; Gandolfi, Stefano; Montaguti, M.; Bitelli, Gabriele

doi:10.1007/978-3-540-74882-3_3

Cited by 7 publications

(5 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The estimation of the strain rate field of the current crustal motion derives from the absolute velocities of 235 GNSS stations distributed worldwide (Figure 1A), including permanent IGS and POLENET stations, and discontinuous VLNDEF stations, whose observations have been collected since 1998 within the PNRA activities [2,6,8,14,32,33].…”

Section: Gnss Datasetmentioning

confidence: 99%

Victoria Land, Antarctica: An Improved Geodynamic Interpretation Based on the Strain Rate Field of the Current Crustal Motion and Moho Depth Model

et al. 2020

View full text Add to dashboard Cite

In Antarctica, the severe climatic conditions and the thick ice sheet that covers the largest and most internal part of the continent make it particularly difficult to systematically carry out geophysical and geodetic observations on a continental scale. It prevents the comprehensive understanding of both the onshore and offshore geology as well as the relationship between the inner part of East Antarctica (EA) and the coastal sector of Victoria Land (VL). With the aim to reduce this gap, in this paper multiple geophysical dataset collected since the 1980s in Antarctica by Programma Nazionale di Ricerche in Antartide (PNRA) were integrated with geodetic observations. In particular, the analyzed data includes: (i) Geodetic time series from Trans Antarctic Mountains DEFormation (TAMDEF), and Victoria Land Network for DEFormation control (VLNDEF) GNSS stations installed in Victoria Land; (ii) the integration of on-shore (ground points data and airborne) gravity measurements in Victoria Land and marine gravity surveys performed in the Ross Sea and the narrow strip of Southern Ocean facing the coasts of northern Victoria Land. Gravity data modelling has improved the knowledge of the Moho depth of VL and surrounding the offshore areas. By the integration of geodetic and gravitational (or gravity) potential results it was possible to better constrain/identify four geodynamic blocks characterized by homogeneous geophysical signature: the Southern Ocean to the N, the Ross Sea to the E, the Wilkes Basin to the W, and VL in between. The last block is characterized by a small but significant clockwise rotation relative to East Antarctica. The presence of a N-S to NNW-SSE 1-km step in the Moho in correspondence of the Rennick Geodynamic Belt confirms the existence of this crustal scale discontinuity, possibly representing the tectonic boundary between East Antarctica and the northern part of VL block, as previously proposed by some geological studies.

show abstract

Section: Gnss Datasetmentioning

confidence: 99%

Victoria Land, Antarctica: An Improved Geodynamic Interpretation Based on the Strain Rate Field of the Current Crustal Motion and Moho Depth Model

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Site velocities now refer to a larger period; from DOY 349 of 1998 to DOY 040 of 2015. Compared to previous works (Capra et al, 2007(Capra et al, , 2008Dubbini et al, 2010;Zanutta et al, 2008 ), the network time extension has been improved with additional measurements and more repetitions.…”

Section: -Introductionmentioning

confidence: 99%

“…However, the observed solid Earth deformation includes several signals produced by different geophysic phenomena which are often difficult to separate. Recent works show that the main displacements detected in the NVL are consistent with those of the East Antarctic plate (Capra et al, 2008). A standard approach to highlighting tectonic movements is based on the residual rate evaluation obtained by the Euler pole estimation and the subtraction of the plate movement from the absolute site rates.…”

Section: -Introductionmentioning

confidence: 99%

Monitoring geodynamic activity in the Victoria Land, East Antarctica: Evidence from GNSS measurements

Zanutta

Negusini

Vittuari

et al. 2017

Journal of Geodynamics

Self Cite

View full text Add to dashboard Cite

“…In addition, there was found a rock uplift in Victoria Land region with the average velocity of 4 mm/year (Capra, et. al., 2002(Capra, et. al., , 2008.…”

Section: Main Directions Of Geodynamic Research In Antarcticamentioning

confidence: 99%

Investigation of Changes of the Kinematic Parameters of Antarctic Tectonic Plate Using Data Observations of Permanent GNSS Stations

Tretyak

Forat

Holubinka

2017

Reports on Geodesy and Geoinformatics

View full text Add to dashboard Cite

show abstract

VLNDEF Project for Geodetic Infrastructure Definition of Northern Victoria Land, Antarctica

Cited by 7 publications

References 45 publications

Victoria Land, Antarctica: An Improved Geodynamic Interpretation Based on the Strain Rate Field of the Current Crustal Motion and Moho Depth Model

Victoria Land, Antarctica: An Improved Geodynamic Interpretation Based on the Strain Rate Field of the Current Crustal Motion and Moho Depth Model

Monitoring geodynamic activity in the Victoria Land, East Antarctica: Evidence from GNSS measurements

Investigation of Changes of the Kinematic Parameters of Antarctic Tectonic Plate Using Data Observations of Permanent GNSS Stations

Contact Info

Product

Resources

About