Results 81 to 90 of about 41,365 (200)

CALCAREOUS NANNOFOSSILS AT THE TRIASSIC/JURASSIC BOUNDARY: STRATIGRAPHIC AND PALEOCEANOGRAPHIC CHARACTERIZATION

Rivista Italiana di Paleontologia e Stratigrafia, 2016
In this work, calcareous nannofossils are identified for the first time in the uppermost Triassic sequence of the Lombardy Basin (Southern Calcareous Alps, Italy).
CINZIA BOTTINI, FLAVIO JADOUL, MANUEL RIGO, MARIACHIARA ZAFFANI, CLAUDIO ARTONI, ELISABETTA ERBA   +5 more
doaj   +1 more source

Development of early calcareous nannoplankton in the late Triassic (Northern Calcareous Alps, Austria)

Global and Planetary Change, 2020
Calcareous nannofossils are considered to be the most productive calcifying organisms, but the impact of their emergence on the chemistry of the ocean in the Late Triassic is not understood yet. Evolutionary details of this bio-event are missing due to the scarcity of well-preserved outcrops worldwide.
Demangel, Isaline, Kovács, Zsófia, Richoz, Sylvain, Gardin, Silvia, Krystyn, Leopold, Baldermann, Andre, Piller, Werner E.   +6 more
openaire   +2 more sources

CALCAREOUS NANNOPLANKTON OF THE SARMATIAN DEPOSITS OF UKRAINE

Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2009
Вперше наведено результати детального вивчення складу вапнистого нанопланктону з сарматських відкладів України. Викладено висновки автора щодо кореляції і зонування підрозділів сармату за наннопланктоном та визначення кліматичних і палеогеографічних умов в цей час.
openaire   +3 more sources

CALCAREOUS NANNOPLANKTON OF THE TITHONIAN OF THE EASTERN CRIMEA

Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2009
Впервые установлен видовой состав известкового нанопланктона в титоне восточного Крыма. Нанофоссилии встречаются редко и имеют малое видовое разнообразие. Полученные данные не дают возможности разделить титон, но позволяют проводить его границы: нижнюю – по исчезновению Stephanilithion bigoti; верхнюю – по расцвету Nannoconus.
openaire   +3 more sources

Calcareous nannoplankton fluctuation within the Albian-Cenomanian Boundary Event of the Tethyan Himalaya

Frontiers in Earth Science
A hemipelagic succession 29m thick, situated in South Tibet within the Tethyan Himalaya tectonic unit, has been investigated for its calcareous nannofossil content. A total of 17 samples were subject to qualitative and semi-quantitative analysis.
Mihaela Melinte-Dobrinescu, Mihaela Melinte-Dobrinescu, Xi Chen, Eliza Anton, Vlad Apotrosoaei, Vlad Apotrosoaei, Hanwei Yao   +6 more
doaj   +1 more source

Calcareous nannoplankton from Callovian deposits of Kanev's dislocation region

, 2016
Досліджено вапняковий нанопланктон з келовейських відкладів різних розрізів Канівщини. Наявність у ранньокеловейській товщі коколітів різного розміру свідчить про несталу солоність басейну седиментації.
Матлай, Л.М.
core   +1 more source

The Calcareous Nannoplankton of the Midway Group (Paleocene) of Alabama [PDF]

, 2017
The calcareous nannoplankton in samples from the Paleocene Midway group of Alabama were examined and photographed using both a light misroscope and a scanning electron miscroscope.
Reimers, David D.
core  

Calcareous nannoplankton in Cretaceous rocks of the north-west part of the Crimean continental slope

, 2016
Вперше досліджено вапняковий нанопланктон у крейдових породах Кримського континентального схилу Чорного моря станцій 3-27, 5806, 5862, 5746, 5604.
Матлай, Л.М.
core   +1 more source

CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY AND PALEOCEANOGRAPHY OF THE TOARCIAN OCEANIC ANOXIC EVENT AT COLLE DI SOGNO (SOUTHERN ALPS, NORTHERN ITALY)

Rivista Italiana di Paleontologia e Stratigrafia, 2015
We present calcareous nannofossil biostratigraphy and abundances for the Upper Pliensbachian-Lower Toarcian interval, including the Toarcian Oceanic Anoxic Event (T-OAE), represented by the Fish Level at Colle di Sogno (N Italy).
CRISTINA EMANUELA CASELLATO, ELISABETTA ERBA   +1 more
doaj   +1 more source

(Table 7) Pliocene calcareous nannoplankton datum events and their estimated magnetochronology at DSDP Hole 72-516

, 1983
(Table 7) Pliocene calcareous nannoplankton datum events and their estimated magnetochronology at DSDP Hole 72 ...
M.P. Aubry, Aubry, Marie-Pierre, W.A. Berggren, Hamilton, Norman, Marie-Pierre Aubry (4340995), N. Hamilton, Berggren, William A, Norman Hamilton (7890782), William A Berggren (6886781)   +8 more
core   +1 more source