Results 21 to 30 of about 4,963 (203)

Climate-Provenance Effect on the Organic Matter Enrichment of the Chang 9 Source Rocks in the Central Ordos Basin, China

open access: yesGeofluids, 2021
The Upper Triassic Chang 9 organic-rich sediments have been considered as effective hydrocarbon source rocks for the Mesozoic petroleum system in the Ordos Basin.
Ling Ma, Zhihuan Zhang, Weiqiu Meng
doaj   +1 more source

Assessment of the southern polar and subpolar warming in the PMIP4 last interglacial simulations using paleoclimate data syntheses [PDF]

open access: yesClimate of the Past
Given relatively abundant paleo-proxies, the study of the last interglacial (LIG, ∼ 129–116 000 years ago, ka) is valuable to understanding the responses and feedback of the Southern Ocean and Antarctica in a warmer-than-preindustrial climate.
Q. Gao   +9 more
doaj   +1 more source

Glacier fluctuations in the northern Patagonian Andes (44°S) imply wind-modulated interhemispheric in-phase climate shifts during Termination 1

open access: yesScientific Reports, 2022
The Last Glacial Termination (T1) featured major changes in global circulation systems that led to a shift from glacial to interglacial climate. While polar ice cores attest to an antiphased thermal pattern at millennial timescales, recent well-dated ...
Rodrigo L. Soteres   +7 more
doaj   +1 more source

H11 meltwater and standard 127 ka Last Interglacial simulations suggest more modest peak temperatures for both Greenland and Antarctica: a multi-model study of water isotopes [PDF]

open access: yesClimate of the Past
The Last Interglacial (LIG) period, approximately 130 000 to 115 000 years ago, represents one of the warmest intervals of the past 800 000 years. Here, we simulate water isotopes in precipitation over Antarctica and the Arctic during the LIG, using ...
L. C. Sime   +9 more
doaj   +1 more source

Paleoclimate-induced stress on polar forested ecosystems prior to the Permian–Triassic mass extinction

open access: yesScientific Reports, 2022
The end-Permian extinction (EPE) has been considered to be contemporaneous on land and in the oceans. However, re-examined floristic records and new radiometric ages from Gondwana indicate a nuanced terrestrial ecosystem response to EPE global change ...
Erik L. Gulbranson   +6 more
doaj   +1 more source

Reconstruction of a Two-Dimensional Blocking Index During the Last Four Hundred Years Using Gridded Temperature and Precipitation Data

open access: yesAtmosphere
We present a two-dimensional reconstruction of blocking frequency indices in the Atlantic-European region spanning the last 400 years. Our approach is based on a simple field reconstruction scheme similar to the principal component regression method. The
Norel Rimbu   +3 more
doaj   +1 more source

Modern and sub-fossil corals suggest reduced temperature variability in the eastern pole of the Indian Ocean Dipole during the medieval climate anomaly

open access: yesScientific Reports, 2021
We present two 40 year records of monthly coral Sr/Ca ratios from the eastern pole of the Indian Ocean Dipole. A modern coral covers the period from 1968 to 2007.
Sri Yudawati Cahyarini   +10 more
doaj   +1 more source

A checklist of invertebrates from Norwegian caves and mines

open access: yesFauna Norvegica, 2013
The invertebrates hitherto registered from Norwegian caves and mines are presented in a checklist. Each species is listed with localities, cavity type with altitude, total length and depth, and also minimum age ka (i.e.
Eivind Østbye, Stein-Erik Lauritzen
doaj   +1 more source

Estimates of late Cenozoic climate change relevant to Earth surface processes in tectonically active orogens [PDF]

open access: yesEarth Surface Dynamics, 2018
The denudation history of active orogens is often interpreted in the context of modern climate gradients. Here we address the validity of this approach and ask what are the spatial and temporal variations in palaeoclimate for a latitudinally diverse ...
S. G. Mutz   +6 more
doaj   +1 more source

Holocene Monsoonal Variations Over Southern India: Looking Into Its Antecedents

open access: yesFrontiers in Earth Science, 2022
A proper understanding of the paleoclimatic variability in the Southern Peninsular India demands a high-resolution paleoclimate reconstruction record. Hence, in this paper, we compiled all the available paleoclimate records from various locations across ...
M. R. Resmi   +2 more
doaj   +1 more source

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