Results 91 to 100 of about 60,917 (227)

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, Volume 49, Issue 2, Page 433-447, April 2026.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source

Differential Craton Destruction Controlled by Fossil Structures in the Central North China Craton

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Craton evolution plays a fundamental role in stabilizing the continental lithosphere and the long‐term evolution of Earth's surface environment. The Shanxi Rift Zone (SRZ) within the North China Craton marks an ongoing craton destruction. Detailed lithospheric structure is essential to explain craton destruction.
Cong Ji, Cunrui Han, Xinglu Wang, Götz Bokelmann, Zhouchuan Huang   +4 more
wiley   +1 more source

Pairing Spruce Budworm Control and Minimal Understory Perturbations: Effects of Btk Spraying Frequency in Boreal Forests

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Spruce budworm epidemic induces tree mortality and modifies understory communities. Could aerial spraying of Btk reduce perturbations in understory communities? Biannual Btk spraying could prevent both wood loss and understory degradation. ABSTRACT Since 1985, more than 10 million hectares of Canadian forests have been treated against spruce budworm ...
Mathilde Robitaille, David Pothier, Stéphanie Pellerin   +2 more
wiley   +1 more source

High‐resolution LiDAR and stereo‐DEMs for debris flow analysis in the Western Ghats, India: Sediment volume computation and run‐out modeling

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
The 2020 Pettimudi debris flow in the Western Ghats of India killed 70 people. Our study using stereo‐DEM, UAV‐based LiDAR data, and field data estimated the sediment loss as 17 × 104 m3. Abstract Computation of sediment volume and accurate modeling of run‐out using high‐resolution digital elevation models (DEMs) are essential for assessing debris flow
Krishnapriya V. K., Rajaneesh A., Sajinkumar K. S., Nikhil Nedumpallile‐Vasu, Yunus P. Ali, Lina Hao, Ajin R. S., Vanessa J. Banks, Majdi Mansour, Christian Arnhardt, Binoj Kumar R. B.   +10 more
wiley   +1 more source

Sr-Nd Systematics and REE distribution in the type magnesite deposits in Lower Riphean of South Urals province

Литосфера, 2016
The geochemistry and REE of magnesite and host carbonate rocks of two Lower Riphean deposits of the South Urals province (Satka and Ismakaevo ore fields) confirm the metasomatic nature of the magnesite.
M. T. Krupenin, A. B. Kuznetsov, G. V. Konstantinova   +2 more
doaj   +2 more sources

Geochemical characteristics of titanite and U-Pb age of garnet from mineral mines of the Southern Urals

Записки Горного института
Mineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko, Anton B. Kuznetsov, Vadim V. Smolensky, Nailya G. Rizvanova, Nadezhda A. Sergeeva   +4 more
doaj  

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

Geological Journal, Volume 61, Issue 3, Page 566-592, March 2026.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae, Md. Sazzadur Rahman, Gao Pin, M. Santosh, Wataru Fujisaki, Sam Uthup, Prince Mandingaisa   +6 more
wiley   +1 more source

Geochemical characterization of Gubanovskaya intrusion of rapakivi granites (Wiborg massif)

Vestnik MGTU
The paper presents new data on geology and composition of rapakivi granites of Gubanovskaya intrusion (Wiborg massif). Petrographic and geochemical characteristics of rapakivi granites of the second (ovoid) and third (trachytoid) phases of intrusion, as ...
Rogova I. V., Skublov S. G., Berezin A. V., Petrov D. A.   +3 more
doaj   +1 more source

Making the Implicit Explicit: Documenting the Hidden Assumptions in Conceptual Models

Hydrological Processes, Volume 40, Issue 3, March 2026.
Recognition of the role of the Mental Model Domain and the analysis tool choice as part of a project's workflow. The workflow consists of three domains; the Problem Domain, Mental Model Domain, and Model Domain. The shape of the text box indicates whether the stage includes an interim reporting step (rectangular) or whether the reporting step occurs at
Saskia L. Noorduijn, Luk Peeters, Sarah K. Marshall, Amir Jazayeri, Okke Batelaan   +4 more
wiley   +1 more source

Dating of Precambrian Metasedimentary Rocks and Timing of their Metamorphism in the Soursat Metamorphic Complex (NW IRAN): Using LA–ICP-MS, U–Pb Dating of Zircon and Monazite [PDF]

Journal of Sciences, Islamic Republic of Iran, 2010
Soursat Metamorphic Complex (SMC) in west of Takab city is one of the polyphase metamorphic terrenes in northern Sanandaj-Sirjan metamorphic belt of Iran. The SMC composed mainly of metasedimentary rocks associated with granitic intrusions.
M. Jamshidi Badr
doaj