AI Article Synopsis
- The uplift of the Tibet Plateau during the Miocene is important for understanding Asian monsoon patterns and alpine biodiversity, but the northern part is still under-studied.
- Researchers utilized pollen records from specific montane conifers to estimate past elevations in the northern Tibet Plateau, revealing significant changes over time.
- Their findings suggest that by the Late Miocene, the entire Tibet Plateau likely reached elevations similar to today's, impacting weather patterns and biodiversity.
Article Abstract
The uplift of the Tibet Plateau (TP) during the Miocene is crucial to understanding the evolution of Asian monsoon regimes and alpine biodiversity. However, the northern Tibet Plateau (NTP) remains poorly investigated. We use pollen records of montane conifers (, , , and ) as a new paleoaltimetry to construct two parallel midrange paleoelevation sequences in the NTP at 1332 ± 189 m and 433 ± 189 m, respectively, during the Middle Miocene [~15 million years ago (Ma)]. Both midranges increased rapidly to 3685 ± 87 m in the Late Miocene (~11 Ma) in the east, and to 3589 ± 62 m at ~7 Ma in the west. Our estimated rises in the east and west parts of the NTP during 15 to 7 Ma, together with data from other TP regions, indicate that during the Late Miocene the entire plateau may have reached a high elevation close to that of today, with consequent impacts on atmospheric precipitation and alpine biodiversity.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.abo2475 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Plate tectonics, cold adaptation and long-distance range expansion to remote archipelagos and the high Andes as drivers of a circumantarctic freshwater arthropod radiation.
Mol Phylogenet Evol
December 2024
SNSB-Zoologische Staatssammlung München, Münchhausenstraße 21, D-81247 Munich, Germany; GeoBio-Center, Ludwig-Maximilians-University, Richard-Wagner-Straße 10, D-80333 Munich, Germany.
Disjunct distributions, characterised by spatially separated populations of related species, offer insights into historical biogeographic patterns and evolutionary processes. This study investigates the evolutionary history of the diving beetle subfamily Lancetinae through a phylogenomic approach incorporating ultraconserved elements (UCEs) and heritage genetic markers. Our findings support an early Miocene origin for Lancetinae, with subsequent diversification influenced by historical vicariance events and long-distance dispersal.
View Article and Find Full Text PDFPhylogeny, antiquity, and niche occupancy of Trinomia (Hymenoptera: Halictidae), an Afrotropical endemic genus of Nomiinae.
Mol Phylogenet Evol
December 2024
Department of Entomology, Washington State University, Pullman, WA, USA.
The Afrotropical region is home to many endemic bee groups, yet almost none have been studied from an integrated, holistic perspective. Among them, the halictid subfamily Nomiinae contains exceptional African diversity with variable distributions and life histories. Here, we combine phylogenomics, molecular dating, and distributional modelling to explore the evolutionary ecology of the genus Trinomia.
View Article and Find Full Text PDFAncient Hybridisation Fuelled Diversification in Acropora Corals.
Mol Ecol
December 2024
State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, China.
Introgression is the infiltration or flow of genes from one species to another through hybridisation followed by backcrossing. This may lead to incorrect phylogenetic reconstruction or divergence-time estimation. Acropora is a dominant genus of reef-building corals; however, whether this group has an introgression history before their diversification remains unclear, and previous divergence-time estimates of Acropora have not considered the impact of introgression.
View Article and Find Full Text PDFProvenance, environments, and tectonic signatures of Tanjong-Sandakan Formations, Northeast Sabah, Malaysia: Implications from sedimentology, palynology, and geochemistry.
Heliyon
December 2024
Department of Geological Engineering, Universitas Muhammadiyah Kalimantan Timur, 75243, Kalimantan Timur, Kota Samarinda, Indonesia.
This study investigates marginal marine deposits found in the Tanjong and Sandakan formations from the Early to Late Miocene in Northeast Sabah. It examines sedimentology, trace elements (TE), rare earth elements (REE), hydrocarbon generation potential, and palynology to understand provenance, depositional environments, and paleoenvironmental conditions. Facies analysis identified four associations in the Tanjong and three in the Sandakan Formation, ranging from fluvial-deltaic to shallow marine environments.
View Article and Find Full Text PDFThe Impact of Early Diagenesis on Biosignature Preservation in Sulfate Evaporites: Insights From Messinian (Late Miocene) Gypsum.
Geobiology
December 2024
Dipartimento di Scienze Della Terra, Università Degli Studi di Torino, Torino, Italy.
Due to their fast precipitation rate, sulfate evaporites represent excellent repositories of past life on Earth and potentially on other solid planets. Nevertheless, the preservation potential of biogenic remains can be compromised by extremely fast early diagenetic processes. The upper Miocene, gypsum-bearing sedimentary successions of the Mediterranean region, that formed ca.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!