Results 61 to 70 of about 21,945 (225)

Stratigraphy of the Hawai'i Scientific Drilling Project core (HSDP2): Anatomy of a Hawaiian shield volcano [PDF]

, 2007
The Hawai'i Scientific Drilling Project (HSDP2) successfully drilled ∼3.1 km into the island of Hawai'i. Drilling started on Mauna Loa volcano, drilling 247 m of subaerial lavas before encountering 832 m of subaerial Mauna Kea lavas, followed by 2019 m ...
Baker, Michael, Garcia, Michael O., Haskins, Eric H., Stolper, Edward M.   +3 more
core   +1 more source

Biogenic Synthesis of Silver and Iron Nanoparticles Derived From Grewia Optiva Leaf Extract: A Novel Approach for Antidiabetic, Anticoagulant and Anti‐Inflammatory Therapies

International Journal of Chemical Kinetics, Volume 58, Issue 4, Page 159-174, April 2026.
ABSTRACT This study presents the green synthesis of silver (Ag‐NPs) and iron nanoparticles (Fe‐NPs) using aqueous leaf extract of Grewia optiva as a natural reducing and stabilizing agent. The extract was prepared using a Kjeldahl apparatus under controlled heating. Nanoparticle synthesis was optimized by varying pH, temperature, and salt concentration,
Muhammad Salman Khan, Khushbakht Asad, Sehrish Asad, Aulia Kanwal, Abdur Rahim, Mina Ziarati, Muhammad Bilal, Nolubabalo Matinise, Farhad Badshah   +8 more
wiley   +1 more source

Decoding organic compounds in lava tube sulfates to understand potential biomarkers in the Martian subsurface

Communications Earth & Environment
Exploring molecular biomarkers in lava tube speleothems offers insights into environmental dynamics, biogeochemical processes, and subsurface life, with implications for astrobiology, particularly in Martian analog environments.
Vera Palma, José María De la Rosa, Bogdan Petroniu Onac, Francesco Sauro, Jesús Martínez-Frías, Ana Teresa Caldeira, José Antonio González-Pérez, Nicasio Tomás Jiménez-Morillo, Ana Zélia Miller   +8 more
doaj   +1 more source

The Effects of Carbonate Precipitation on the Physical Properties of Basalt

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract To avoid the negative consequences of climate change, there is an urgent need to remove carbon dioxide from the atmosphere. Carbon mineralization—the conversion of injected CO2 into stable carbonate minerals—offers a promising pathway for large‐scale, permanent geologic storage. While projects such as CarbFix have demonstrated its feasibility,
Jonathan Simpson, Matěj Peč, Hoagy O’Ghaffari, Sharath Chandra Mahavadi, Jean E. Elkhoury   +4 more
wiley   +1 more source

A Laboratory Study of Plasma Charging Inside Lava Tubes on the Lunar Surface

The Planetary Science Journal
The electrostatic charging environment inside lunar lava tubes was investigated in laboratory experiments using a glass tube exposed to a simulated solar wind flow.
S. Gopalakrishnan, X. Wang, M. Horányi
doaj   +1 more source

Diurnal Temperature Variability at Latitudinally Distinct Sites on the Moon

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The thermophysical environment of the Moon plays a crucial role for future exploration, resource utilization and also in understanding its geological evolution. While global‐scale surface temperature distributions have been reasonably well constrained through numerical modeling and orbiter observations, recent in situ measurements have ...
G. Ambily, K. Durga Prasad, Y. Ramakrishna   +2 more
wiley   +1 more source

كهف عريقة (دراسة جيومورفولوجية)

مجلة جامعة دمشق للآداب و العلوم الإنسانية, 2021
ينتمي كهف عريقة إلى نموذج أنابيب الحمم البركانية Lava tubes، يمتد مسافة نحو (500م)، يتكّون من أربع حجرات، وثلاثة ممرات متناقصة في أبعادها بالاتجاه نحو نهايته. الحجرات ذات سقف مقوس- مقبب، غني بالكسور والشقوق، وأرضية مستوية، وتتألف جدران الحجرات الثلاث
د. غزوان محمد أمين سلوم
doaj  

Animal community dynamics at senescent and active vents at the 9° N East Pacific Rise after a volcanic eruption [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gollner, S., Govenar, B., Arbizu, P. M., Mullineaux, L.
Arbizu, P. Martinez, Bright, Monika, Gollner, Sabine, Govenar, Breea, Le Bris, Nadine, Mills, Susan W., Mullineaux, Lauren S., Shank, Timothy M., Weinbauer, Markus   +8 more
core   +2 more sources

Shortwave Infrared Microimaging Spectroscopy of the Martian Meteorites

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Until samples from the Martian surface are successfully brought to Earth, meteorites represent the only opportunity to perform laboratory analyses on Martian material. Microimaging spectroscopy of the Martian meteorite suite provides a valuable means to better understand infrared data collected remotely from the Martian surface. This rapid and
J. K. Miura, B. L. Ehlmann, R. Greenberger, E. Cutts   +3 more
wiley   +1 more source

3D Modeling of Lacus Mortis Pit Crater with Presumed Interior Tube Structure [PDF]

Journal of Astronomy and Space Sciences, 2015
When humans explore the Moon, lunar caves will be an ideal base to provide a shelter from the hazards of radiation, meteorite impact, and extreme diurnal temperature differences.
Ik-Seon Hong, Yu Yi, Jaehyung Yu, Junichi Haruyama   +3 more
doaj   +1 more source