Results 21 to 30 of about 11,537 (242)

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

American Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian, Emily B. Sessa, Richard S. Barclay, Regan E. Dunn, Jacquelyn L. Gill, Kirk R. Johnson, S. Augusta Maccracken, Ian M. Miller, Jarmila Pittermann, Ellen D. Currano   +9 more
wiley   +1 more source

Infiltration Well Design for Environmental Conservation: Assessing Watershed and Groundwater Depth in Denpasar City

Jurnal Presipitasi
Urbanization and climate change are expected to exacerbate and introduce uncertainty in future flood characteristics. The city of Denpasar often experiences flooding due to rapid population growth and changes in land use.
Tri Hayatining Pamungkas, Mawiti Infantri Yekti, Putu Doddy Heka Ardana, Kadek Budhi Warsana, I Ketut Kembarajaya   +4 more
doaj   +1 more source

CURRENT BEACH DEPOSITS OF THE DANUBE5DNIESTER SEGMENT OF THE BLACK SEA (LITHOLOGY AND GENESIS)

Геологія і корисні копалини Світового океану, 2022
The acumulative beach deposits of the western-north coast of the Black Sea in the area from the village of Liman (Katran spit) to the village of Carolino-Bugaz (Odesa region) have been studied.
Nesterovskyi V.A.
doaj   +1 more source

Soil Physicochemical Characteristics and Bacterial Diversity of Pinus Massoniana Plantations in Different Strata Backgrounds in Red Soil Erosion Areas

Shuitu baochi tongbao, 2022
[Objective] The intrinsic relationship between soil physical and chemical properties and bacterial abundance was determined in order to provide a reference for precise control of soil erosion in a Pinus massoniana forest in red soil erosion areas ...
Huang Siqi, Yu Junbao, Zhu Chenlu, Yang Fan, Wu Xinyi, Han Xuejie, Hou Xiaolong   +6 more
doaj   +1 more source

THE LITHOSTRATIGRAPHY OF THE NEAR-SURFACE IN PART OF SEDIMENTARY KOLMANI FIELD IN NORTHERN BENUE TROUGH, NIGERIA, USING SOIL CORE AND SEISMIC REFRACTION DATA [PDF]

Earth Sciences Pakistan, 2020
Soil samples from 31 shallow boreholes were acquired at depths 0m, 1m, 2m, 3m, 4m, 5m, 7m, 10m, 15m, 20m, 25m, 30m, 35m, 40m, 45m, 50m, 55m, and 60m in Pingida (Kolmani Field) in Ako LGA, Gombe State, Nigeria. Using the same boreholes, seismic refraction
Glory G. Akpan, Etim D. Uko, Owajiokiche D. Ngerebara   +2 more
doaj   +1 more source

Synergistic Effect on Enhanced Oil Recovery in High Salinity Carbonate Reservoirs Using a Novel PEI‐Functionalized Carbon Nanotube Nanocomposite

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil, Dilipkumar S. Patel, N. Beemkumar, Tariq Abdulkader Alrihaim, Dhirendra Nath Thatoi, Ripendeep Singh, Rohit Kumar, Parminder Singh, Ahmad Khalid   +8 more
wiley   +1 more source

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source

Identifying Dominant Structural Pattern of Semarang City Using Digital Elevation Model and Landsat 8-OLI Imagery

JGEET: Journal of Geoscience, Engineering, Environment and Technology
Semarang City is an area in the northern part of Java Island, administratively the Capital of Central Java Province. Because Semarang City is the provincial capital, Semarang City has a relatively dense population.
Ahmad Syauqi Hidayatillah, Tri Apri Nurcahyo, Jody Bintara Pradiksa Muliawan, Alfyah Edina Endarsih   +3 more
doaj   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

Spatial Distribution of Seawater Intrusion Based on Various Lithologies in Pesanggaran Subdistrict, Banyuwangi, Indonesia

Forum Geografi
Seawater intrusion often occurs in shoreline areas closest to alluvium rock lithology and is caused by excessive groundwater exploration. In Pesanggaran Banyuwangi, saline groundwater was found at approximately 8000 m from the shoreline.
Dwi Lestari, Sri Astutik, Fahmi Arif Kurnianto   +2 more
doaj   +1 more source