Sequence stratigraphy is the study of sediments and sedimentary rocks in terms of repetitively arranged facies and associated stratal geometry (Vail 1987; Van Wagoner et al 1988, 1990; Christie-Blick 1991). It is a technique that can be traced back to the work of Sloss et al (1949), Sloss (1950, 1963), and Wheeler (1958) on interregional unconformities of the North American craton, but it becam...

Ten cyclothems from the Wolfcampian of northeastern Kansas, including parts of the Council Grove and Chase Groups, were examined in detail with particular attention to discontinuity surfaces and paleosol development. These cyclothems are shown to be bounded by major discontinuities, or sequence boundaries, where marine limestones abruptly overlie paleosol profiles. Occurring within these cyclot...

Magnetic stripes have long been assumed to be indicative of oceanic crust. However, continental crust heavily intruded by magma can also record magnetic stripes. We re-evaluate the nature Cuvier Abyssal Plain (CAP), offshore NW Australia, which hosts and has previously defined as show that chemical data from a basalt within CAP, described an enriched mid-ocean ridge basalt, could equally interp...

The 1601 CE earthquake (Mw ca. 5.9) in “Unterwalden,” Central Switzerland, triggered multiple subaqueous mass movements and a subaerial rockfall that generated tsunami waves with run-up heights of up to 4 m several hundred meters inundation along the coastal lowlands Lake Lucerne. In shallow Lucerne Bay, historical chronicles reported an oscillation water initial amplitude ?1–2 period 10 min, w...

The best preserved and most complete lava flow sequences of the Central Atlantic Magmatic Province (CAMP) in Morocco are exposed High Atlas can reach up to 300 m thickness. Four distinct formations, emplaced subaerial environments, classically recognized: Lower, Intermediate, Upper Recurrent formations. These formations separated by paleosoils sedimentary (mudstones, siltstones, sandstones, lim...

Exploration of the Black Sea shelf reveals two major shelf-crossing unconformities. The older unconformity separates mostly-barren deposits of late glacial age from overlying Neoeuxinian sediment containing fresh to brackish fauna. This unconformity can be traced over the shelf edge to depths beyond –140 m. The substrate below is dry, firm, and contains unchallenged evidence of subaerial exposu...

T study of the deep structure and evolution of passive continental margins is important for the understanding of rifting processes and the formation of associated sedimentary basins. Since the classical models of McKenzie (1978) and Wernicke (1985), understanding how passive continental margins form, that is to say mainly the way that continental lithosphere is thinned leading to subsidence, re...

The study deals with the upper contact of Qamchuqa Formation overlying Bekhme area northern Iraq. This surface is characterized by presence autobreccia bed including angular grains (0.05_30cm in size) and composed dolomite disseminated black fragments which may indicates their subaerial exposure.
 Cementing materials filled fractures pores surrounding breccias mostly are saddle crystal up ...

The Manihiki Plateau is an elevated oceanic volcanic plateau that was formed mostly in Early Cretaceous time by hotspot activity. We analyze new seismic reflection data acquired on cruise KIWI 12 over the High Plateau region in the southeast of the plateau, to look for direct evidence of the location of the heat source and the timing of uplift, subsidence and faulting. These data are correlated...

Abstract Drill core samples from the Profitis Ilias Pb-Zn-Cu-Ag-Au vein mineralization on Milos Island, Greece provide new insights into (i) metal sources, (ii) primary vertical metal(loid) distribution, and (iii) supergene enrichment processes in a transitional shallow-marine to subaerial hydrothermal environment. Metal contents of unaltered altered host rocks combined with Pb isotope analyses...