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Articles by Andre Droxler
Controls on the evolution of large Upper Cambrian microbial buildups in Mason County, Texas, USA: Bridging the gaps between scales from microbes to large buildup architecture
This study used systematic coring, hyperspectral scans, carbonate/siliciclastic analysis, and stable isotope measurements to evaluate environmental controls on large microbial buildup evolution. Buildups initiated on a discontinuous transgressive lag of flat-pebble conglomerate, controlling their spatial distribution and flat-based geometry. The consistent three-phase buildup architecture indicates allogenic forcing by fluctuations in sea level and siliciclastic influx.
The Origin of Modern Atolls: Challenging Darwin's Deeply Ingrained Theory
Annual Review of Marine Science Vol. 13:- (Volume publication date January 2021) Review in Advance first posted online on September 25, 2020. (Changes may still occur before final publication.) https://doi.org/10.1146/annurev-marine-122414-034137 André W. Droxler1 and Stéphan J.
Benthic Foraminiferal response to sea level change in the mixed siliciclastic‐carbonate system of southern Ashmore Trough (Gulf of Papua)
[1] Ashmore Trough in the western Gulf of Papua (GoP) represents an outstanding modern example of a tropical mixed siliciclastic‐carbonate depositional system where significant masses of both river‐borne silicates and bank‐derived neritic carbonates accumulate. In this study, we examine how benthic foraminiferal populations within Ashmore Trough vary in response to sea level–driven paleoenvironmental changes, particularly organic matter and sediment supply.
Late Pleistocene and Holocene sedimentation, organic‐carbon delivery, and paleoclimatic inferences on the continental slope of the northern Pandora Trough, Gulf of Papua - Febo - 2018 - Journal of Geophysical Research: Earth Surface - Wiley Online Library
[1] We investigated sediment and organic‐carbon accumulation rates in two jumbo piston cores (MV‐54, MV‐51) retrieved from the midslope of the northeastern Pandora Trough in the Gulf of Papua, Papua New Guinea. Our data provide a first assessment of mass fluxes over the past ∼33,000 14C years B.P. and variations in organic‐carbon sources. Core sediments were analyzed using a suite of physical properties, organic geochemistry, and micropaleontological measurements.
Deep water geomorphology of the mixed siliciclastic‐carbonate system, Gulf of Papua
[1] The Gulf of Papua (GoP) has become a focal point for understanding the deposition and accumulation of siliciclastic and carbonate material along and across a low‐latitude continental margin. Although studies have addressed submarine geomorphological features on the inner and middle shelves, as well as processes that may have led to their formation, the seafloor of adjacent slope regions remains poorly documented.
Neogene evolution of the mixed carbonate‐siliciclastic system in the Gulf of Papua, Papua New Guinea
[1] This paper outlines the evolution of the late Cenozoic mixed carbonate‐siliciclastic depositional system in the Gulf of Papua (GoP), using seismic, gravity, multibeam bathymetry, well data sets, and Landsat imagery. The deposition of the mixed sedimentary sequences was influenced by dynamic interplay of tectonics, eustasy, in situ carbonate production, and siliciclastic sediment supply. The roles of these major factors are estimated during different periods of the GoP margin evolution.
Coralgal reef morphology records punctuated sea-level rise during the last deglaciation
Multibeam bathymetric mapping and 3.5?kHz seismic profiling, acquired in September 2012, onboard the R/V Falkor (Fig. 2 and Supplementary Figs. 1–6), showcase the detailed morphological architecture of the south Texas shelf edge drowned banks. Spurs and grooves, typical morphological adaptations to high-energy inner fore reef conditions33,34 (Figs.
Great Blue Hole evidence suggests drought led to collapse of Mayan civilization
New Evidence Unearthed for the Origins of the Maya http://news.nationalgeographic.com/news/2013/13/130425-maya-origins-olmec-pyramid-ceibal-inomata-archaeology-science/ More evidence Mayan civilization collapsed because of drought http://www.washingtonpost.com/news/morning-mix/wp/2014/12/30/more-evidence-mayan-civilization-collapsed-because-of-drought/ Was the Mayan civilisation partially wiped out by an extreme drought?
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