During the Middle and Late Jurassic, Europe Boreal regions formed a network of semi-restricted, relatively shallow marine basins. Consequently, stable oxygen (δ18O) carbon (δ13C) isotope records from belemnites were strongly influenced by changes in palaeoceanography climate. New data eastern Greenland, which western margin critical Viking Corridor (the narrow seaway that linked Tethys to realm...

The Paleocene-Eocene Thermal Maximum (PETM) is associated with major extinctions in the deep ocean, and significant paleogeographic ecological changes surface ocean terrestrial environments. However, impact of environmental change on shelf biota less well understood. Here, we present a new PETM record low paleolatitude shallow-marine carbonate platform from Meghalaya, NE India (eastern Tethys)....

The East Kunlun Orogenic Belt is considered as one of the important gold mineralization regions in Tethys tectonic domain. These orogenic deposits are related to intermediate-acid intrusions formed at end Paleo-Tethys evolution, but petrogenesis controversial. This paper presents a new study on geochemistry zircon U-Pb, O, S, and Pb isotopic compositions Asiha quartz diorite, granite porphyry, ...

in this research, biostratigraphy and paleo-ecological reconstruction of the qom formation deposits in bijegan village, northeast ofdelijan, are discussed. the studied section is situated in the western margin of the urumieh-dokhtar magmatic arc (the intra-arc basin).the qom formation deposits at the studied area are rupelian-chattian in age. larger benthic foraminifers are used for biostratigr...

The Tibetan Plateau is a key region to understand the evolution of Tethys Oceans. To better constrain tectonic Proto-Tethys Ocean on western margin Yangtze plate, we present an integrated petrography, geochemistry, and zircon U-Pb-Lu-Hf isotope study newly recognized early Silurian gabbro serpentinite rocks from eastern Yidun terrane Plateau. Zircon U-Pb dating yields Early age 438.2 ± 2.8 Ma. ...

Numerous research data have been obtained about the Sumdo Palaeo‐Tethys, but reports on occurrence of Permian Ocean islands are relatively scarce. Here, we present zircon U–Pb geochronology, geochemistry, and in situ Hf isotopic characteristics ocean island basalt (OIB)‐type gabbros from Ewulang Nianqing‐Sumdo, Tibet. The age OIB‐type is 263 Ma (the Middle Permian), representing formation gabbr...

An investigation on the diversity of marine fungi was carried out by isolating fungi from twigs collected from several beaches in Chanthaburi, Rayong and Chon Buri provinces. Each fungus was directly isolated on half strength potato dextrose agar with 70% sea water. A total of 152 marine fungal isolates were found, comprising 26 genera and 31 species: Algialus parvus, Antennospora quadricornuta...

The Jurassic (∼201-145 Myr ago) was long considered a warm 'greenhouse' period; more recently cool, even 'icehouse' episodes have been postulated. However, the mechanisms governing transition between so-called Warm Modes and Cool Modes are poorly known. Here we present a new large high-quality oxygen-isotope dataset from an interval that includes previously suggested mode transitions. Our resul...

We investigate the problem of satellite survival during a hypothetical Late Heavy Bombardment in the outer solar system, as predicted by the Nice model (Tsiganis, Gomes, Morbidelli, and Levison 2005, Nature 435). Using a Monte Carlo approach we calculate, for satellites of Jupiter, Saturn, and Uranus, the probability of experiencing a catastrophic collision during the Late Heavy Bombardment (LH...

Many cases of intercontinental disjunct distributions of seed plants have been investigated, however few have concerned the continents of Eurasia (mainly Central Asia), Africa, and Australia, especially the xerophytic lineages are lacking. Nitraria (Nitrariaceae) is just one of these xerophytic lineages. Previous Nitraria studies have hypothesized either Africa as the ancient center, with dispe...