LINDENS: A program for lineament length and density analysis

Sáinz, Antonio María Casas; Cortés, Angel L.; Maestro, Adolfo; Soriano, María Asunción; Riaguas, Andrés; Bernal, Javier

doi:10.1016/s0098-3004(00)00017-0

Cited by 63 publications

(31 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this paper we consider that lineaments are straight linear features, presumably expressing a subsurface phenomenon, that differ distinctly from the patterns of adjacent features (Sabins, 1987). These lineaments show a NE-SW dominant trend in the Duero and Tagus basins (Giner, 1996;Cortés et al, 1998;Casas et al, 2000a;Cortés et al, 2003) and WNW-ESE in the Ebro basin (Arlegui and Simón, 2001;Arlegui and Soriano, 2003), coinciding with the trend of the main rivers or their main tributaries (Fig. 12).…”

Section: Lineament-controlled Drainage Pattern In the Endorheic Basinsmentioning

confidence: 99%

On the tectonic origin of Iberian topography

Sáinz

Muñoz

2009

Tectonophysics

View full text Add to dashboard Cite

The present-day topography of the Iberian peninsula can be considered as the result of the Mesozoic -Cenozoic tectonic evolution of the Iberian plate (including rifting and basin formation during the Mesozoic and compression and mountain building processes at the borders and inner part of the plate, during the Tertiary, followed by Neogene rifting on the Mediterranean side) and surface processes acting during the Quaternary. The northern-central part of Iberia (corresponding to the geological units of the Duero Basin, the Iberian Chain, and the Central System) shows a mean elevation close to one thousand meters above sea level in average, some hundreds of meters higher than the southern half of the Iberian plate. This elevated area corresponds to (i) the top of sedimentation in Tertiary terrestrial endorheic sedimentary basins (Paleogene and Neogene) and (ii) planation surfaces developed on Paleozoic and Mesozoic rocks of the mountain chains surrounding the Tertiary sedimentary basins. Both types of surfaces can be found in continuity along the margins of some of the Tertiary basins. The Bouguer anomaly map of the Iberian peninsula indicates negative anomalies related to thickening of the continental crust. Correlations of elevation to crustal thickness and elevation to Bouguer anomalies indicate that the di erent landscape units within the Iberian plate can be ascribed to di erent patterns: (1) The negative Bouguer anomaly in the Iberian plate shows a rough correlation with elevation, the most important gravity anomalies being linked to the Iberian Chain. (2) Most part of the so-called Iberian Meseta is linked to intermediate-elevation areas with crustal thickening; this pattern can be applied to the two main intraplate mountain chains (Iberian Chain and Central System) (3) The main mountain chains (Pyrenees and Betics) show a direct correlation between crustal thickness and elevation, with higher elevation/crustal thickness ratio for the Central System vs. the Betics and the Pyrenees. Other features of the Iberian topography, namely the longitudinal pro le of the main rivers in the Iberian peninsula and the distribution of present-day endorheic areas, are consistent with the Tertiary tectonic evolution and the change from an endorheic to an exorheic regime during the Late Neogene and the Quaternary. Some of the problems involving the timing and development of the Iberian Meseta can be analysed considering the youngest reference level, constituted by the shallow marine Upper Cretaceous limestones, that indicates strong di erences induced by (i) the overall Tertiary and recent compression in the Iberian plate, responsible for di erences in elevation of the reference level of more than 6 km between the mountain chains and the endorheic basins and (ii) the e ect of Neogene extension in the Mediterranean margin, responsible for lowering several thousands of meters toward the East and uplift of rift shoulders. A part of the recent uplift within the Iberian plate can be attributed o sostatic uplift in zones of crusta...

show abstract

Section: Lineament-controlled Drainage Pattern In the Endorheic Basinsmentioning

confidence: 99%

On the tectonic origin of Iberian topography

Sáinz

Muñoz

2009

Tectonophysics

View full text Add to dashboard Cite

show abstract

“…[38] Lineament analysis aims to reveal the regional fracture pattern of an area [McElfresh et al, 2002;Casas et al, 2000;Koike et al, 1998]. O' Leary et al [1976Leary et al [ , p. 1467] defined a lineament geomorphologically as a ''mappable, simple or composite linear surface feature, whose parts are aligned in a rectilinear or slightly curvilinear relationship and which differs distinctly from the patterns of adjacent features and presumably reflects a subsurface phenomenon.''…”

Section: B1 Lineament Analysismentioning

confidence: 99%

Kinematic constraints on intra‐arc shear and strain partitioning in the southern Andes between 38°S and 42°S latitude

2006

View full text Add to dashboard Cite

[1] On the basis of structural field work, fault kinematic analysis, and the analysis of digital imagery, we describe the northern part of the southern Andean intra-arc Liquiñe-Ofqui Fault Zone (LOFZ) as an SC-like fault zone system accommodating part of the Nazca-South American plate convergence obliquity. Kinematic modeling suggests that the LOFZ accommodated 124 (+24/À21) km of dextral displacement between 40°S and 42°S and 67 (+13/À11) km between 38°S and 40°S since the Pliocene. Associated vertical axis rotations are 31 ± 4°c lockwise and 9 ± 1°counterclockwise along synthetic and antithetic faults, respectively. Mean Pliocene to recent shear rates along the LOFZ decrease northward from 32 ± 6 mm/yr to 13 ± 3 mm/yr compatible with partitioning of half of the convergence obliquity into the intra-arc zone north of 40°S and complete partitioning to the south. The displacement gradient along the intra-arc zone results in margin-parallel shortening of the fore arc.

show abstract

“…Several techniques have been developed to map lineaments using automated algorithms (see Casas et al 2000;Ekneligoda & Henkel 2010;Elmahdy et al 2012;Elmahdy & Mohamed 2016b). However, the lineaments were drawn manually, taking into account previous works that were carried out in the same area (Herrero-Hernández et al 2010and HerreroHernández & Gómez-Fernández 2012).…”

Section: Methodsmentioning

confidence: 99%

Mapping of tecto-lineaments and their influence on sedimentological processes in a GIS environment: a case study of the Iberian trough, Spain

Hernández¹,

Moro²,

Valle-Feijóo³

et al. 2017

Geologica Carpathica

View full text Add to dashboard Cite

Abstract:The subsurface sedimentary succession of the Iberian Trough, Spain was examined using geophysical t echniques (analogue seismic profiles) and inverse distance weighted (IDW) interpolation algorithm implemented in a gvGIS open source software. The results showed that the Late Cretaceous succession is divided into two depositional sequences: DS-1 (Late Albian-Middle Turonian) and DS-2 (Late Turonian-Campanian). From the analogical seismic sections, digital data and quantitative isopach maps for DS-1 and DS-2 were obtained. The new isopach maps obtained for the DS-1 sequence showed that the deeper sectors of the basin were located to the northeast and the proximal ones to the southwest. The palaeoshoreline was inferred to be situated in the N 150 direction. Across and parallel to this direction several blocks were delimited by faults, with a direction between 30 N and N 65. The thickness of the sediments in these blocks varied in direction NW-SE, with subsidence and depocentres in hangingwall and uplift in the footwall. These variations may have been related to active synsedimentary faults (e.g., Boñar and Yugueros Faults). In the DS-2 sequence, a lineament separated the smaller thicknesses to the southwest from the larger thicknesses (up to 1400 m) to the northeast. This lineament had an N170 orientation and it indicated the position of the palaeoshoreline. In the isopach map for DS-2 there were two groups of lineaments. The first showed a block structure that was limited by N100-120, they were foundering toward the S and had large thicknesses (depocentres), and rose towards the N, where there were smaller thicknesses. The second group of lineaments had a N 50-65 direction and, in this case, they had a similar interpretation as the one in DS-1. The maps obtained are of great help for geologists and permit better understanding of the geological setting and stratigraphic succession of the Late Cretaceous of the Iberian Trough.

show abstract

LINDENS: A program for lineament length and density analysis

Cited by 63 publications

References 7 publications

On the tectonic origin of Iberian topography

On the tectonic origin of Iberian topography

Kinematic constraints on intra‐arc shear and strain partitioning in the southern Andes between 38°S and 42°S latitude

Mapping of tecto-lineaments and their influence on sedimentological processes in a GIS environment: a case study of the Iberian trough, Spain

Contact Info

Product

Resources

About