Results 31 to 40 of about 8,743 (239)

Testing the effects of basic numerical implementations of water migration on models of subduction dynamics [PDF]

Solid Earth, 2014
Subduction of oceanic lithosphere brings water into the Earth's upper mantle. Previous numerical studies have shown how slab dehydration and mantle hydration can impact the dynamics of a subduction system by allowing a more vigorous ...
M. E. T. Quinquis, S. J. H. Buiter
doaj   +1 more source

Strong plates enhance mantle mixing in early Earth

Nature Communications, 2018
The subducting plates can either penetrate straight into the lower mantle or flatten in the mantle transition zone, yet slab dynamics in the past remains unclear.
Roberto Agrusta, Jeroen van Hunen, Saskia Goes   +2 more
doaj   +1 more source

Influence of the Thickness of the Overriding Plate on Convergence Zone Dynamics

Geochemistry, Geophysics, Geosystems, 2020
The important role played by the upper plate in convergence zones dynamics has long been underestimated but is now more and more emphasized. However, the influence of its thickness and/or strength on orogenic systems evolution remains largely unknown ...
Solenn Hertgen, Philippe Yamato, Benjamin Guillaume, Valentina Magni, Nicholas Schliffke, Jeroen vanHunen   +5 more
doaj   +1 more source

Dynamic Earth: crustal and mantle heterogeneity

Australian Journal of Earth Sciences, 2008
The dynamic processes within the Earth leave their record in geophysical and geochemical variation about the general stratification with depth. A snapshot of current structure is provided by geophysical evidence, whereas geochemical information provides a perspective over the age of the Earth.
Kennett, Brian, Tkalčić, Hrvoje
openaire   +2 more sources

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

Advanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou, Huawei Mu, Xueying Nie, Yue Gao, Hui Wang, Ling Fang, Tiangang Luan, Monthon Ganmanee, Jian‐Wen Qiu, Jin Sun, Jack Chi‐Ho Ip   +10 more
wiley   +1 more source

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

O‐GlcNAcylation Regulation of SNAP29‐Dependent Autophagy Activation Dictates Chemoresistance in Gastric Cancer

Advanced Science, EarlyView.
Model illustrating the proposed mechanism by which chemotherapy‐induced downregulation of OGT disrupts SNAP29 O‐GlcNAcylation, promoting STX17‐SNAP29‐VAMP8 SNARE complex assembly and protective autophagy, leading to chemoresistance, which in turn establishes a feedforward loop to perpetuate drug tolerance.
Liang Tang, Shaoji Zhao, Ziling Shao, Tao Luo, Baifu Peng, Yifan Liu, Jinning Ye, Jianjun Peng, Kaiyu Sun, Jianbo Xu   +9 more
wiley   +1 more source

Long-range slab interaction controls trench advance in double-subduction systems

Frontiers in Earth Science
Subduction is a fundamental process that drives plate tectonics. The dynamics of subducting slabs strongly influence trench migration, mantle flow, and the thermal and compositional structure of the mantle.
Haoyuan Li, Magali I. Billen
doaj   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Identification and tectonic implications of a tear in the South American plate at the southern end of the Lesser Antilles

Geochemistry, Geophysics, Geosystems, 2008
In the southeast corner of the Caribbean, westward subduction of (Atlantic) oceanic South America beneath the Lesser Antilles transitions to east‐west transform motion between continental South America and the Caribbean plate.
S. A. Clark, M. Sobiesiak, C. A. Zelt, M. B. Magnani, M. S. Miller, M. J. Bezada, A. Levander   +6 more
doaj   +1 more source