Article
Physics, Multidisciplinary
D. S. Ahn, J. Amano, H. Baba, N. Fukuda, H. Geissel, N. Inabe, S. Ishikawa, N. Iwasa, T. Komatsubara, T. Kubo, K. Kusaka, D. J. Morrissey, T. Nakamura, M. Ohtake, H. Otsu, T. Sakakibara, H. Sato, B. M. Sherrill, Y. Shimizu, T. Sumikama, H. Suzuki, H. Takeda, O. B. Tarasov, H. Ueno, Y. Yanagisawa, K. Yoshida
Summary: The most neutron-rich sodium nucleus observed so far, 39Na, was discovered at the RIKEN Nishina Center Radioactive Isotope Beam Factory. The study confirms the particle stability of 39Na and provides new key information for understanding nuclear binding and structure under extremely neutron-rich conditions. This discovery has significant implications for nuclear models and theories predicting the neutron dripline and sheds light on the nuclear shell property of 39Na at the neutron number N = 28.
PHYSICAL REVIEW LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Farhana Huq, P. Craig Smalley, Viktoriya Yarushina, Ingar Johansen, Christian Alexander Schopke, Lena K. Ovrebo, Elin Skurtveit, Ebbe H. Hartz
Summary: Detailed profiles of formation water Sr-87/Sr-86 ratio and C-O-Sr isotope analysis of carbonate cements can help determine the location, cause, and duration of pressure barriers in reservoirs. This method is useful for identifying major long-term fluid communication barriers.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Changming Wang, Jun Deng, Leon Bagas, Xinyu He, Jing Zhang
Summary: The Huaishuping gold deposit in central China is structurally controlled and has a resource of around 32 tonnes with an average grade of 5.5 g/t Au. Isotopic analysis suggests that the hydrothermal fluids were derived from metamorphic fluid, but the source of gold remains uncertain. Re-Os dating indicates an age of 202 +/- 8 Ma for the gold mineralisation, consistent with Triassic extensional tectonics following the collision between North and South China.
MINERALIUM DEPOSITA
(2021)
Review
Chemistry, Multidisciplinary
Erik Johnstone, Natalia Mayordomo, Edward J. Mausolf
Summary: This article presents an overview of the chemical, nuclear, and physical properties of Tc-101 and its applications. Tc-101 is important for research and applications related to radioanalytical tracer studies, fusion materials, and nuclear medicine.
COMMUNICATIONS CHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Stefano Caruso, Marco L. Fiorentini, David C. Champion, Yongjun Lu, Yuichiro Ueno, Robert H. Smithies
Summary: The identification of fluid reservoirs in Neoarchean orogenic gold deposits is crucial for understanding the sulfur cycle and improving exploration strategies. The sulfur isotope composition of granitoids in the Archean Yilgarn Craton of Western Australia indicates the presence of sulfur reservoirs at deep crustal levels, which coincide with terrane subdivision and reflect crustal evolution and lithospheric architecture.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geology
M. N. Muhtar, Chang-Zhi Wu, Matthew J. Brzozowski, Ru-Xiong Lei, Zhi-Jie Feng, Bo-Yang Chen, Yao-Hui Jiang
Summary: The study identified three peaks in gold mineralization throughout the Tianshan region and indicated different sources of ore-forming metals, with deposits in the Western Tianshan primarily sourced from upper crustal reservoirs while those in the Chinese Tianshan mainly sourced from lower crustal and/or mantle reservoirs. These different reservoirs likely account for the distinct characteristics of gold deposits in the Western and Chinese Tianshan.
ORE GEOLOGY REVIEWS
(2021)
Article
Geology
Xiao-Yang Liu, Jun Tan, Huai-Yu He, Jin-Rong Gan
Summary: Recent mineral exploration in the Jiaodong Province has identified a new gold metallogenic belt with over 120 tonnes of gold reserves. This study presents a combination of fluid inclusion and isotopic data to suggest that the ore fluids are derived from magma mixing with meteoric water and have a deep-seated origin, likely from mafic dikes and mantle sources. The gold deposits in this region are believed to be associated with the subduction of the Paleo-Pacific Plate and the destruction of the North China Craton during the Early Cretaceous, showing consistent geochemical signatures with other Jiaodong gold deposits.
ORE GEOLOGY REVIEWS
(2021)
Article
Geology
Wei Zhai, Si-qi Zheng, Ling-yu Zhang, Jin-long Liang, M. Santosh, Xiao-ming Sun, Canyun Liao, En Zhang, Feng Yang, Jun-wei Zhao, Yuan Zhang, Song-yan Han
Summary: Dachang is a world-class gold deposit located in the Bayan Har Terrane, with an average grade of 3.0 g/t and resources of 121 t of gold. The genesis of the deposit is still debated, but the mineralization is controlled by subsidiary faults or fractures in the host strata of the Lower Triassic Bayan Har Shan Group. The deposit is characterized by four stages of mineralization, with pyrite, arsenopyrite, stibnite, and native gold as the main ore minerals.
ORE GEOLOGY REVIEWS
(2023)
Article
Geochemistry & Geophysics
Mikael Vasilopoulos, Ferenc Molnar, Hugh O'Brien, Yann Lahaye, Marie Lefebvre, Antonin Richard, Anne-Sylvie Andre-Mayer, Jukka-Pekka Ranta, Matti Talikka
Summary: The study investigated the temporal relationship between Co and Au deposition, the metal enrichment with protolith composition and alteration mineralogy in the Juomasuo Au-Co deposit. Results suggest that the metal association in the deposit was formed by spatially coincident and multiple hydrothermal processes, with different fluids responsible for the formation of the Co-rich and Au-Co ores.
MINERALIUM DEPOSITA
(2021)
Article
Geology
Bei Li, Laimin Zhu, Xiao Xiong, Lele Ding, Yuanbo Ma
Summary: The Longtougou deposit in the South Qinling Orogen, China, is a newly discovered moderate tonnage gold deposit. This study provides insights into the fluid sources and formation processes of the deposit, based on the analysis of mineralization stages and various types of pyrite.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Chuang Bao, Bin Chen, Chunjiang Liu, Jiahao Zheng, Shuaijie Liu
Summary: Rare studies on Li isotope systematics of ore-forming fluids in mesothermal deposits, especially orogenic gold deposits, were carried out on samples from the Canzhuang gold deposit in East China. Results showed significant variations in Li isotopic compositions of altered-rock and quartz-vein type gold deposits, indicating distinct ore-forming processes and fluid evolutions. This work highlights the potential for Li isotopes in quartz and pyrite to provide insights into mesothermal hydrothermal system evolution.
ORE GEOLOGY REVIEWS
(2021)
Article
Geology
Chengye Yang, Xiaoming Sun, Qiyuan Lu, Jianzhou Yi, Dengfeng Li, Yu Fu, Qiaofen Liu, Fengyu Miao, Zida Tong
Summary: The Buzhu gold deposit in the Indus-Yarlung Zangbo suture zone is a newly discovered representative gold deposit. The gold is mainly invisible lattice gold in pyrite and micrograins in (arseno)pyrite fractures. Two generations of auriferous pyrite, Py2a and Py2b, were identified, with Py2b containing more gold. Petrological and geochemical data suggest that the gold was derived from metamorphic devolatilization of the sedimentary wallrocks. The gold mineralization age is estimated to be around 19.60 million years ago, indicating an orogenic gold mineralization event related to extensional tectonics during the late-stage India-Asia continental collision.
ORE GEOLOGY REVIEWS
(2023)
Article
Environmental Sciences
Arioene Vreedzaam, Paul Ouboter, Ashna D. Hindori-Mohangoo, Ryan Lepak, Samantha Rumschlag, Sarah Janssen, Gwen Landburg, Arti Shankar, Wilco Zijlmans, Maureen Y. Lichtveld, Jeffrey K. Wickliffe
Summary: In Suriname, the use of mercury has increased due to gold mining, putting fish-reliant communities, such as Indigenous and Tribal communities, at risk of higher mercury exposure. However, the study found no significant increase in fish mercury levels over time or based on proximity to gold mining sites. Instead, remote unmined sites were found to be more susceptible to gaseous elemental mercury deposition, leading to increased contamination risk. This highlights the potential impact of mercury releases from gold mining on fish-reliant communities far away from the mining sites.
ENVIRONMENTAL POLLUTION
(2023)
Article
Anthropology
Daniel Berger, Michael Brauns, Gerhard Bruegmann, Ernst Pernicka, Nicole Lockhoff
Summary: In this study, a new analytical approach combining silver and copper isotopic with trace element analyses was used to identify purified gold. The results showed that very heavy silver and copper isotopic compositions are clear evidence for parted gold, but the applicability of copper isotopes might be limited. Additionally, the study provided the first comprehensive dataset of silver isotope ratios of archaeological gold objects from the Mediterranean and Central Europe.
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES
(2021)
Article
Geochemistry & Geophysics
Masroor Alam, Sheng-Rong Li, M. Santosh, Tehseen Zafar, Zahid Hussain, Mao-Wen Yuan, Hawas Khan
Summary: The Karakoram Block in North Pakistan formed during the late Permian-Triassic on the southern margin of Asian Plate with a topography characterized by glaciated high mountains. Several rivers and streams draining from these mountain peaks carry detritus with precious and base metals. However, the primary source deposits and their ore genesis remain unknown due to the rugged glaciated topography and inaccessibility for prospecting and in situ sampling.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2023)
Article
Physics, Nuclear
Z. Kohley, T. Baumann, G. Christian, P. A. DeYoung, J. E. Finck, N. Frank, B. Luther, E. Lunderberg, M. Jones, S. Mosby, J. K. Smith, A. Spyrou, M. Thoennessen
Article
Physics, Nuclear
M. D. Jones, Z. Kohley, T. Baumann, G. Christian, P. A. DeYoung, J. E. Finck, N. Frank, R. A. Haring-Kaye, A. N. Kuchera, B. Luther, S. Mosby, J. K. Smith, J. Snyder, A. Spyrou, S. L. Stephenson, M. Thoennessen
Article
Physics, Nuclear
B. R. Marks, P. A. DeYoung, J. K. Smith, T. Baumann, J. Brown, N. Frank, J. Hinnefeld, M. Hoffman, M. D. Jones, Z. Kohley, A. N. Kuchera, B. Luther, A. Spyrou, S. Stephenson, C. Sullivan, M. Thoennessen, N. Viscariello, S. J. Williams
Article
Physics, Multidisciplinary
M. Thoennessen
PRAMANA-JOURNAL OF PHYSICS
(2015)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2016)
Article
Physics, Nuclear
J. K. Smith, T. Baumann, D. Bazin, J. Brown, P. A. DeYoung, N. Frank, M. D. Jones, Z. Kohley, B. Luther, B. Marks, A. Spyrou, S. L. Stephenson, M. Thoennessen, A. Volya
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2017)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2018)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2019)
Article
Multidisciplinary Sciences
Y. Kondo, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, F. Delaunay, A. Delbart, Q. Deshayes, Zs. Dombradi, C. A. Douma, A. Ekstrom, Z. Elekes, C. Forssen, I. Gasparic, J. -M. Gheller, J. Gibelin, A. Gillibert, G. Hagen, M. N. Harakeh, A. Hirayama, C. R. Hoffman, M. Holl, A. Horvat, A. Horvath, J. W. Hwang, T. Isobe, W. G. Jiang, J. Kahlbow, N. Kalantar-Nayestanaki, S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Koerper, S. Koyama, I. Kuti, V. Lapoux, S. Lindberg, F. M. Marques, S. Masuoka, J. Mayer, K. Miki, T. Murakami, M. Najafi, T. Nakamura, K. Nakano, N. Nakatsuka, T. Nilsson, A. Obertelli, K. Ogata, F. de Oliveira Santos, N. A. Orr, H. Otsu, T. Otsuka, T. Ozaki, V. Panin, T. Papenbrock, S. Paschalis, A. Revel, D. Rossi, A. T. Saito, T. Y. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, N. Shimizu, Y. Shimizu, H. Simon, D. Sohler, O. Sorlin, L. Stuhl, Z. H. Sun, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Toernqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, N. Tsunoda, T. Uesaka, Y. Utsuno, I. Vernon, H. Wang, Z. Yang, M. Yasuda, K. Yoneda, S. Yoshida
Summary: Subjecting a physical system to extreme conditions is a common method to gain a better understanding of its organization and structure. The investigation of isotopes with different neutron-to-proton ratios than stable nuclei is an important test for nuclear-structure theories. This study reports the first observation of the decay of O-28 and 27O isotopes and compares their decay energies with theoretical models. The results have implications for the understanding of nuclear structure.
Article
Physics, Nuclear
A. N. Kuchera, D. Bazin, T. Phan, J. A. Tostevin, M. Babo, T. Baumann, P. C. Bender, M. Bowry, J. Bradt, J. Brown, P. A. DeYoung, B. Elman, J. E. Finck, A. Gade, G. F. Grinyer, M. D. Jones, B. Longfellow, E. Lunderberg, T. H. Redpath, W. F. Rogers, K. Stiefe, M. Thoennessen, D. Votaw, D. Weisshaar, K. Whitmore, R. B. Wiringa
Summary: This study investigates nucleon removal reactions and validates the models used to calculate the removal reaction cross sections. Three different nucleon removal reactions were performed and the partial cross sections to individual final states were determined by detecting the residual nuclei in coincidence with gamma rays. Comparison between measured and calculated cross sections reveals that the theoretical description of the removal process is in better agreement with the data when removing weakly bound nucleons.
Article
Physics, Nuclear
D. Votaw, P. A. DeYoung, T. Baumann, A. Blake, J. Boone, J. Brown, D. Chrisman, J. E. Finck, N. Frank, J. Gombas, P. Gueye, J. Hinnefeld, H. Karrick, A. N. Kuchera, H. Liu, B. Luther, F. Ndayisabye, M. Neal, J. Owens-Fryar, J. Pereira, C. Persch, T. Phan, T. Redpath, W. F. Rogers, S. Stephenson, K. Stiefel, C. Sword, A. Wantz, M. Thoennessen
Article
Physics, Nuclear
C. Sword, J. Brett, T. Baumann, B. A. Brown, N. Frank, J. Herman, M. D. Jones, H. Karrick, A. N. Kuchera, M. Thoennessen, J. A. Tostevin, M. Tuttle-Timm, P. A. DeYoung
Article
Physics, Nuclear
M. D. Jones, K. Fossez, T. Baumann, P. A. DeYoung, J. E. Finck, N. Frank, A. N. Kuchera, N. Michel, W. Nazarewicz, J. Rotureau, J. K. Smith, S. L. Stephenson, K. Stiefel, M. Thoennessen, R. G. T. Zegers
Article
Physics, Nuclear
M. D. Jones, T. Baumann, J. Brett, J. Bullaro, P. A. DeYoung, J. E. Finck, N. Frank, K. Hammerton, J. Hinnefeld, Z. Kohley, A. N. Kuchera, J. Pereira, A. Rabeh, J. K. Smith, A. Spyrou, S. L. Stephenson, K. Stiefel, M. Tuttle-Timm, R. G. T. Zegers, M. Thoennessen