The Anti-Atlas belt of Morocco extends ENE–WSW, over more than 600 km, from the Atlantic margin in west to interior African plate east. It exhibits Precambrian rocks outcropping as basement inliers and surrounded by marine Ediacaran–Cambrian sequences around axis mountain range. belt, which has for a long time been interpreted Variscan age, is now revealed have experienced major vertical movements through Mesozoic Cenozoic times. Thereby, domain appears be affected two episodes exhumation...

Abstract Observations from rifted margins reveal that significant structural and crustal variability develops through the process of continental extension breakup. While a clear link exists between distinct margin domains specific phases rifting, origin strong segmentation along length remains relatively ambiguous may reflect multiple competing factors. Given rifting frequently initiates on heterogenous basements with complex tectonic history, role inheritance shear zone reactivation is...

Wide regions of Morocco, from the Meseta to High Atlas, have experienced km-scale upward vertical movements during Middle Jurassic Early Cretaceous times following appearance oceanic crust in Central Atlantic. The area experiencing exhumation was flanked W by a domain continuous subsidence, part which is named Essaouira-Agadir basin. Comparison with movement curves predicted lithospheric thinning models shows that only 50–60 % subsidence documented Essaouira basin can be explained post-rift...

Abstract During the final stage of continental rifting, stretching localizes in future distal domain where lithospheric necking occurs resulting breakup. In magma‐poor margins, is accompanied by crustal hyperextension, serpentinization, and exhumation mantle lithosphere continent‐ocean transition domain. magma‐rich accomplished emplacement large amounts volcanics continental‐ocean transition, form seaward dipping wedges flood basalts (seaward reflections). This study examines factors...

Science, without effective dissemination, has a very short life and little impact. Yet, most scientific research is hidden away behind exclusive expensive paywalls imposed by traditional publishers. Tektonika an Earth Science community-led diamond open-access journal (DOAJ: free for authors, readers) publishing peer reviewed in tectonics structural geology. It grass-roots initiative driven the enthusiasm devotion of wide diverse spectrum Scientists from around globe, intended to help shape...

The past decade has seen the consolidation of open access practices in scientific publishing, with funding bodies, international agencies and academic institutions requiring free to not only papers but also other output such as datasets computer codes. transition led multiple publishers offer Gold Open Access (GOA) schemes, under which are free-to-read. Compared traditional publication models, GOA comes at a much higher cost for authors. These have had documented negative impact on...

[1] The Atlantic passive margin of Morocco developed during Mesozoic times in association with the opening Central and Alpine Tethys. Extensional basins formed along future continental Atlas rift system. In times, this system was inverted to form High Middle fold-and-thrust belts. To provide a quantitative kinematic analysis evolution rifted margin, we present crustal section crossing region Doukkala Basin, Meseta We construct post-rift upper compensating for Tertiary vertical movements...

The Orphan Basin is located in the deep offshore of Newfoundland margin, and it bounded by continental shelf to west, Grand Banks south, blocks Knoll Flemish Cap east. formed Mesozoic time during opening North Atlantic Ocean between eastern Canada western Iberia–Europe. This work, based on well data regional seismic reflection profiles across basin, indicates that crust was affected several extensional episodes Jurassic Early Cretaceous, separated events uplift erosion. preserved...

Abstract The O rphan B asin, lying along the N ewfoundland rifted continental margin, formed in M esozoic time during opening of orth A tlantic cean and breakup I beria/ E urasia from merica. To investigate evolution asin factors that governed its formation, we (i) analysed stratigraphic crustal architecture documented by seismic data (courtesy TGS ), (ii) quantified tectonic thermal subsidence a constructed geological transect, (iii) used forward numerical modelling to understand state...

Abstract Low‐temperature thermochronology studies revealed major exhumation events affecting domains in the hinterland of Central Atlantic margins, where Palaeozoic and/or Precambrian basement is exposed. Thus, traditionally assumed to be stable since at least Variscan and juxtaposed subsiding Meso‐Cenozoic basins, appear affected by km‐scale vertical movements during rifting after Early Jurassic breakup Atlantic. In this contribution, we investigate extent magnitude these motions along NW...

At the end of 2016, Spectrum Geo released two long offset seismic reflection profiles across Somalian rifted margin, in Juba Lamu and Obbia basins respectively – part larger 2D surveys acquired 2014 2015/16 (Stanca et al., 2016; Figure 1). In frontier areas, potential field data interpretation, particular public domain satellite-derived gravity, can play a key role early stages exploration by identifying basement structure, sediment thickness, continental-oceanic crust transition (COT) or...

Abstract Using low‐temperature thermochronology on apatite and zircon crystals, we show that the western Reguibat Shield, located in northern part of West African Craton, experienced significant cooling heating events between Jurassic present times. The obtained fission track ages range 49 102 Ma with mean lengths varying 11.6 13.3 μm Dpar values 1.69 3.08 μm. Zircon analysis yielded two 159 118 Ma. Apatite (U–Th)/He uncorrected single‐grain 76 95 Thermal inverse modelling indicates Shield...

Abstract. Rifting and continental break-up are major research topics within geosciences, a thorough understanding of the processes involved as well associated natural hazards resources is great importance to both science society. As result, large body knowledge available in literature, with most this previous being focused on tectonic geodynamic their links evolution rift systems. We believe that key task for researchers make our systems applicable face current future societal challenges. In...

It is unclear how the crustal-scale erosional exhumation of continental domains Moroccan Atlantic margin and excessive subsidence its rifted affected Late Jurassic-Early Cretaceous post-rift evolution margin. To constrain km-scale exhumation, we study structural Jbel Amsittene. This anticline located on coastal plain margin, classically considered to have been developed initially in by halokinesis, contraction during Neogene. Contrarily, our analysis indicates that a fault-propagation fold...

During rifting, continental crust necks, leading to significant thickness reduction in a few tens of kilometres. However, deformations associated with the necking process remain elusive due outcrop examples and lack seismic data coverage that clearly images crustal architecture at depth. Here we use deep, high-resolution across well-developed zone northeastern South China Sea passive margin show structural style necking. Seismic stratigraphy domain can be divided into pre-, syn- post-rift...

Knowledge (b)locking impedes scientific breakthroughs and hinders societal development. Historically, the privileged paid access to scholarly work has held captive advancement of numerous brilliant minds their ideas. The Tektonika initiative was born remedy unfairness current publishing scene by offering community a platform where tectonics structural geology research are freely openly accessible everyone. As part growing movement within academia, provides an alternative conventional models...

Observations from rifted margins reveal that significant structural and crustal heterogeneity develops through the process of continental extension breakup. While a clear link exists between distinct margin domains specific phases rifting, origin strong segmentation along length remains relatively enigmatic may reflect multiple competing factors. Given rifting frequently initiates on complex tectonics sutures, inheritance is invoked as an segmentation, although to date no studies have...

Over the past few years, different fields of Earth Sciences have witnessed inception several community-led diamond open access journals (e.g., Volcanica, Tektonika, Seismica). The aim is to remove paywall barriers by publishing peer-reviewed articles at no cost both authors and readers, thus offering a platform for true science. Alternatives classical for-profit scientific do exist: it time bring research on dynamics (exo)planets’ interior arena.  Therefore, we are pleased...

The Atlas fold and thrust belt extend from the Atlantic rifted margin of Morocco to Tunisia over a distance 2500km. Before its inversion in Cenozoic present, system evolved initially as rift basin that opened simultaneously with west Tethys north, during upper Triassic-Jurassic period. Western High is believed be influenced by Ocean (also known domain), where Triassic Early Jurassic strata are considered syn-rift, while Middle Cretaceous deposits labelled post-rift. In contrast, Marrakech...

Science, without effective dissemination, has a very short life and little impact. Yet, most scientific research is hidden away behind exclusive expensive paywalls imposed by traditional publishers. Tektonika an Earth Science community-led diamond open-access journal (DOAJ: free for authors, readers) publishing peer reviewed in tectonics structural geology. It grass-roots initiative driven the enthusiasm devotion of wide diverse spectrum Scientists from around globe, intended to help shape...