Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Shaunna M Morrison"'
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 1, Pp 69-85 (2024)
Abstract Crystal structures of minerals are defined by a specific atomic arrangement within the unit‐cell, which follows the laws of symmetry specific to each crystal system. The causes for a mineral to crystallize in a given crystal system have be
Externí odkaz:
https://doaj.org/article/0a4fc3ece1ce4938b7e712d6a7d1a822
Autor:
Xiaogang Ma, Jolyon Ralph, Jiyin Zhang, Xiang Que, Anirudh Prabhu, Shaunna M. Morrison, Robert M. Hazen, Lesley Wyborn, Kerstin Lehnert
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 1, Pp 94-104 (2024)
Abstract The open data movement has brought revolutionary changes to the field of mineralogy. With a growing number of datasets made available through community efforts, researchers are now able to explore new scientific topics such as mineral ecolog
Externí odkaz:
https://doaj.org/article/bb91ff6d83c14dd49d8dd96b321472c4
Publikováno v:
Geoscience Data Journal, Vol 10, Iss 4, Pp 489-499 (2023)
Abstract Data‐driven discovery in geoscience requires an enormous amount of FAIR (findable, accessible, interoperable and reusable) data derived from a multitude of sources. Many geology resources include data based on the geologic time scale, a sy
Externí odkaz:
https://doaj.org/article/7f117ecf9c8e4c02baabc6c13541c937
Autor:
Jiyin Zhang, Xiang Que, Bhuwan Madhikarmi, Robert M. Hazen, Jolyon Ralph, Anirudh Prabhu, Shaunna M. Morrison, Xiaogang Ma
Publikováno v:
Applied Computing and Geosciences, Vol 21, Iss , Pp 100154- (2024)
This paper presents an enhanced 3D heat map for exploratory data analysis (EDA) of open mineral data, addressing the challenges caused by rapidly evolving datasets and ensuring scientifically meaningful data exploration. The Mindat website, a crowd-s
Externí odkaz:
https://doaj.org/article/2938584a9a2a48adbb129f48e725097d
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Chlorite has long been considered a mineral group likely to have different trace element chemistry with proximity to mineralization, and therefore can be used to vector towards ore bodies. However, due to their geochemical complexity, it has proven c
Externí odkaz:
https://doaj.org/article/43b27f66543e4b8d9d2da5bd1da80af9
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract Earth surface redox conditions are intimately linked to the co-evolution of the geosphere and biosphere. Minerals provide a record of Earth’s evolving surface and interior chemistry in geologic time due to many different processes (e.g. te
Externí odkaz:
https://doaj.org/article/7f3d70efe6b341a887023723bbac5d3d
Autor:
Daniel R. Hummer, Joshua J. Golden, Grethe Hystad, Robert T. Downs, Ahmed Eleish, Chao Liu, Jolyon Ralph, Shaunna M. Morrison, Michael B. Meyer, Robert M. Hazen
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
The co-evolution of oxygenation of the Earth’s atmosphere and lithosphere is still poorly constrained. However, the oxidation state of manganese minerals reveals that the redox state of Earth’s crust responds to changes in atmospheric oxygen foll
Externí odkaz:
https://doaj.org/article/918ea0cb555a4ed7b1b5bc7695451a50
Autor:
Anirudh Prabhu, Shaunna M. Morrison, Ahmed Eleish, Hao Zhong, Fang Huang, Joshua J. Golden, Samuel N. Perry, Daniel R. Hummer, Jolyon Ralph, Simone E. Runyon, Kathleen Fontaine, Sergey Krivovichev, Robert T. Downs, Robert M. Hazen, Peter Fox
Publikováno v:
Geoscience Data Journal, Vol 8, Iss 1, Pp 74-89 (2021)
Abstract Minerals contain important clues to understanding the complex geologic history of Earth and other planetary bodies. Therefore, geologists have been collecting mineral samples and compiling data about these samples for centuries. These data h
Externí odkaz:
https://doaj.org/article/2590482944a34d03a90ea1a731cdbfa2
Autor:
Ross R. Large, Robert M. Hazen, Shaunna M. Morrison, Dan D Gregory, Jeffrey A. Steadman, Indrani Mukherjee
Publikováno v:
Geosystems and Geoenvironment, Vol 1, Iss 2, Pp 100036- (2022)
The great oxygenation event (GOE), the first of two major rises in atmospheric oxygen in Earth history, was initially placed near the Archean-Proterozoic boundary (∼2500 Ma). More recently, the position of the GOE has been moved to between 2500 and
Externí odkaz:
https://doaj.org/article/2f253517fc68407dabb3cf73cc6de98f
Autor:
Robert M. Hazen, Robert T. Downs, Ahmed Eleish, Peter Fox, Olivier C. Gagné, Joshua J. Golden, Edward S. Grew, Daniel R. Hummer, Grethe Hystad, Sergey V. Krivovichev, Congrui Li, Chao Liu, Xiaogang Ma, Shaunna M. Morrison, Feifei Pan, Alexander J. Pires, Anirudh Prabhu, Jolyon Ralph, Simone E. Runyon, Hao Zhong
Publikováno v:
Engineering, Vol 5, Iss 3, Pp 397-405 (2019)
Large and growing data resources on the diversity, distribution, and properties of minerals are ushering in a new era of data-driven discovery in mineralogy. The most comprehensive international mineral database is the IMA database, which includes in
Externí odkaz:
https://doaj.org/article/a2d972ba84fe40f7a19228f856cd1d8f