Search Results - "HETÉNYI, Magdolna"

Triassic–Jurassic boundary events inferred from integrated stratigraphy of the Csővár section, Hungary by Pálfy, József, Demény, Attila, Haas, János, Carter, Elizabeth S., Görög, Ágnes, Halász, Dóra, Oravecz-Scheffer, Anna, Hetényi, Magdolna, Márton, Emő, Orchard, Michael J., Ozsvárt, Péter, Vető, István, Zajzon, Norbert

“…Processes and causes of biotic and environmental change at the Triassic–Jurassic transition remain controversial, partly because of a scarcity of…”
Get full text

Investigation of the effect of soil mineral composition on soil organic matter stability by CZIRBUS, Nóra, NYILAS, Tünde, RAUCSIK, Béla, HETÉNYI, Magdolna

“…The soil organic matter (SOM) pools with different stability play different roles in the agricultural and environmental processes, e.g. in the global carbon…”
Get full text

Organic matter in a low productivity anoxic intraplatform basin in the Triassic Tethys by HETENYI, Magdolna, SAJGO, Csanad, VETÖ, Istvan, BRUKNER-WEIN, Alice, SZANTO, Zsuzsanna

“…This paper presents isotopic, bulk geochemical and biomarker data measured on organic matter accumulated in a narrow extensional basin developed at the…”
Get full text

Simulated thermal maturation of type I and III kerogens in the presence, and absence, of calcite and montmorillonite by HETENYI, M

“…The effects of a mineral matrix on hydrocarbon generation from different types of kerogen were examined. Simulated thermal maturation of type I ∗ ∗ Results of…”
Get full text

Comparison of Pliocene organic-rich lacustrine sediments in twin craters by Brukner-Wein, Alice, Sajgó, Csanád, Hetényi, Magdolna

“…The organic matter of Pliocene oil shales from maar-type twin craters (Egyházaskeszö and Várkeszö) in Hungary was studied by different analytical techniques…”
Get full text

Extension of carbon flux estimation to oxic sediments based on sulphur geochemistry and analysis of benthic foraminiferal assemblages: A case history from the Eocene of Hungary by Veto, I, Ozsvart, P, Futo, I, Hetenyi, M

“…The amount and type of organic matter (OM), chemical and mineralogical compositions, and the amount and isotopic ratio of sulphur were measured and benthic…”
Get full text

Chemical structure of the organic matter in a Pliocene maar-type shale: Implicated Botryococcus race strains and formation pathways by Derenne, Sylvie, Largeau, Claude, Hetényi, Magdolna, Brukner-Wein, Alice, Connan, Jacques, Lugardon, Bernard

“…A maar-type Pliocene oil shale from Pula (Hungary) was examined by Scanning and Transmission Electron Microscopy (SEM, TEM) bitumen analysis, spectroscopic…”
Get full text

QUANTIFICATION OF SOIL ORGANIC MATTER DEGRADATION BY ROCK-EVAL PYROLYSIS by NYILAS, Tünde, TÓTH, Tivadar M., HETÉNYI, Magdolna

“…Rock-Eval (RE) pyrolysis was designed for petroleum exploration to determine the type and quality of organic matter in rock samples. It is a quick and…”
Get full text

RELATIONS OF PH AND MINERAL COMPOSITION IN SALT-AFFECTED LACUSTRINE PROFILES by BOZSÓ, Gábor, PÁL-MOLNÁR, Elemér, HETÉNYI, Magdolna

“…Our research aims at the complex geochemical study of the solid phase of salt-affected profiles, originating from natural lakes and lakes under anthropogenic…”
Get full text

Oxygen index as an indicator of early organic maturity by HETENYI, M

“…Most maturity indices can be used during catagenesis and metagenesis but there are only a few indicators to show the degree of organic maturation within the…”
Get full text

Estimation of primary productivity in the Toarcian Tethys — A novel approach based on TOC, reduced sulphur and manganese contents by Vetö, István, Demény, Attila, Hertelendi, Ede, Hetényi, Magdolna

“…About 60 samples from the non-bioturbated Úrkút Manganese Ore Formation (Bakony Mountains, Hungary), representing the early Toarcian anoxic event, were studied…”
Get full text

Variations in organic geochemistry and lithology of a carbonate sequence deposited in a backplatform basin (Triassic, Hungary) by HETENYI, Magdolna, BRUKNER-WEIN, Alice, SAJGO, Csanad, HAAS, Janos, HAMOR-VIDO, Maria, SZANTO, Zsuzsanna, TOTH, Maria

Get full text

Primary productivity and early diagenesis in the Toarcian Tethys on the example of the Mn-rich black shales of the Sachrang Formation, Northern Calcareous Alps by Ebli, Oskar, Vető, István, Lobitzer, Harald, Sajgó, Csanád, Attila Demény, Hetényi, Magdolna

“…Organic, inorganic and isotope geochemical investigations have been performed on 25 samples — 20 laminated marl samples and 5 re-sediment samples — taken from…”
Get full text

Preservation of algaenan and proteinaceous material during the oxic decay of Botryococcus braunii as revealed by pyrolysis-gas chromatography/mass spectrometry and 13 C NMR spectroscopy by Nguyen, Reno T, Harvey, H.Rodger, Zang, Xu, van Heemst, Jasper D.H, Hetényi, Magdolna, Hatcher, Patrick G

Get full text

Origin of variations in organic matter abundance and composition in a lithologically homogeneous maar-type oil shale deposit (Gérce, Pliocene, Hungary) by DERENNE, Sylvie, LARGEAU, Claude, BRUKNER-WEIN, Alice, HETENYI, Magdolna, BARDOUX, Gérard, MARIOTTI, André

Get full text

Preservation of algaenan and proteinaceous material during the oxic decay of Botryococcus braunii as revealed by pyrolysis-gas chromatography/mass spectrometry and 13C NMR spectroscopy by NGUYEN, Reno T, HARVEY, H. Rodger, XU ZANG, VAN HEEMST, Jasper D. H, HETENYI, Magdolna, HATCHER, Patrick G

Get full text

Mangánoxidok Adszorpciós Sajátságainak Szerepe Az Elemvándorlásban by Magdolna, Hetényi

“…A geokémia fontos feladata az elemek gyakoriságának, előfordulásának, helyi feldúsulásának okait, mechanizmusát kutatni. Tanulmányozza, hogy a mai elemeloszlás…”
Get full text

Paleoenvironments, source rock potential and thermal maturity of the Upper Benue rift basins, Nigeria: implications for hydrocarbon exploration by Akande, Samuel O., Ojo, Olusola J., Erdtmann, Bernd D., Hetenyi, Magdolna

“…The Upper Benue rift comprising the Gongola and Yola Basins in Nigeria consist of the Aptian-Albian Bima Formation, the Yolde Formation (Cenomanian-Turonian),…”
Get full text

Anaerobic degradation of organic matter controlled by productivity variation in a restricted Late Triassic basin by Vető, I., Hetényi, M., Hámor-Vidó, M., Hufnagel, H., Haas, J.

“…The organic-rich late Triassic Kössen Formation (Hungary) was deposited in a shallow basin, situated between a carbonate platform and the continent. A large…”
Get full text