A5060813948- Geology and Paleoclimatology Research
- Marine and environmental studies
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Groundwater and Isotope Geochemistry
- Archaeology and ancient environmental studies
- Metabolomics and Mass Spectrometry Studies
- Advanced Chemical Sensor Technologies
- Marine and coastal ecosystems
- Karst Systems and Hydrogeology
- Geological and Geophysical Studies Worldwide
- Geological and Geophysical Studies
- Pleistocene-Era Hominins and Archaeology
- Atmospheric and Environmental Gas Dynamics
- International Maritime Law Issues
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Geologic Mapping
- Archaeological and Geological Studies
- Hydrocarbon exploration and reservoir analysis
- Geological formations and processes
- Tree-ring climate responses
- Maritime and Coastal Archaeology
- Forensic Anthropology and Bioarchaeology Studies
Geological Survey of Israel
2017-2024
Max Planck Institute for Chemistry
2020-2023
Ben-Gurion University of the Negev
2014-2022
Online oxygen (δ18 O) and hydrogen (δ2 H) isotope analysis of fluid inclusion water entrapped in minerals is widely applied paleo-fluid studies. In the state art research, however, there a scarcity reported inter-technique comparisons to account for possible analytical offsets. Along with improving precisions sample size limitations, interlaboratory can lead more robust application records.Mineral samples-including speleothem, travertine, vein material-were analyzed on two newly setup...
Fundamental changes in the lifeways of hunter-gatherers occurred tandem with rapid climatic spanning 13,000 years Epipaleolithic period (25-12 ka, EP hereafter), until onset Holocene. Local groups showed reduced mobility causing a cascade effect manifested demography, social organization, economy, subsistence strategies, and material culture. The transformation western Asian mobile into sedentary way life is mostly investigated from last stage this process: Late 'Natufian' (ca. 15-12 cal...
The development of the Dead Sea Transform (DST) coincided with a vertical uplift transform margins, forming main N-S mountain ridge Israel, as well subsidence pull-apart basin. So far only minor parts these events have been accurately dated.  Karst processes that started after marine regression, led to formation karst aquifers in carbonate lithologies Cenomanian Eocene age. tectonics (mountain and Valley subsidence) caused caves be gradually uplifted above regional groundwater...
Abstract Pore fluids extracted from a 456 m sediment core, recovered within the framework of multinational and International Continental Scientific Drilling Program (ICDP) co-sponsored effort at bottom terminal Dead Sea, recorded chemical variations in deep lake over past 220 k.y. Mg2+ Br– were shown to be conservative pore fluids, increasing concentration during interglacial periods, diluting glacials, providing excellent proxies for net water balance changes. Furthermore, Na/Cl ratio...
Rationale Since their introduction more than a decade ago, isotope ratio infrared spectroscopy (IRIS) systems have rapidly become the standard for oxygen ( δ 18 O) and hydrogen 2 H) analysis of water samples. An important disadvantage IRIS is well‐documented sample‐to‐sample memory effect, which requires each sample to be analyzed multiple times before desired accuracy reached, lengthening driving up costs analyses. Methods We present an adapted set‐up calculation protocol fully automated...
Abstract There is limited understanding of temperature and atmospheric circulation changes that accompany an Atlantic Meridional Overturning Circulation (AMOC) slowdown beyond the North realm. A Peqi’in Cave (Israel) speleothem dated to last interglacial period (LIG), 129–116 thousand years ago (ka), together with a large modern rainfall monitoring dataset, serve as base for investigating past AMOC effects on Eastern Mediterranean. Here, we reconstruct LIG temperatures source using organic...
Abstract Diagenetic processes in anoxic sedimentary environments influence sediment magnetic properties mainly through dissolution of detrital magnetite and precipitation authigenic greigite. Recently exposed late Holocene Dead Sea sediments provide an opportunity to study the governing greigite formation preservation, their relation different hydrological settings. Magnetic data pore‐fluid compositions were obtained from three sections along a N‐S transect on western shore: Og, Ein‐Feshkha...
Abstract The hypersaline Dead Sea and its sediments are natural laboratories for studying extremophile microorganism habitat response to environmental change. In modern times, increased freshwater runoff the lake surface waters resulted in stratification dilution of upper water column followed by microbial blooms. However, whether these events facilitated a deep is obscure. Here we investigate archived evidence processes changing regional hydroclimate conditions reconstructing chemical...
Over the past decade or so, laser spectrometric instruments have revolutionized field of isotope analysis water samples. These do not require complex lab facilities, are easy to use and can provide hydrogen oxygen data at high precision throughput.One well-known shortcoming these analyzers is that individual measurements display significant sample-to-sample memory effects. Particularly larger isotopic differences between samples, contamination by previous sample off-set following even after...
Over recent years, a growing number of case studies have highlighted the relevance fluid inclusion (FI) isotope analysis on speleothem calcite for reconstruction rainfall variation back in time. Multiple documented FI results consistent with projected local meteoric water line values, demonstrating that can provide unique and quantitative paleohydrological data. Several other shown data be compromised due to diagenetic effects, or (petrography-controlled) analytical artefacts. Such artefacts...