Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Eiichi Tajika"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 7, Pp n/a-n/a (2024)
Abstract Understanding the oceanic phosphate concentration is critical for understanding marine productivity and oxygen evolution throughout Earth history. During the Archean, estimates of marine phosphate levels range from scarce to enriched conditi
Externí odkaz:
https://doaj.org/article/73d307e2061d41239820a0c9cc43dc99
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-8 (2023)
The Miocene climatic optimum could have been triggered by coeval increase in magmatism, suggests global carbon cycle simulations constrained by seawater osmium isotope data from Pacific Ocean sediments.
Externí odkaz:
https://doaj.org/article/ffe408f5c648417b85b405aaa3ddddaf
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 20 (2024)
Methane (CH _4 ) is a primarily biogenic greenhouse gas. As such, it represents an essential biosignature to search for life on exoplanets. Atmospheric CH _4 abundance on Earth-like inhabited exoplanets is likely controlled by marine biogenic product
Externí odkaz:
https://doaj.org/article/e6a7719da95345d497f59e425abb613b
Autor:
Yasuto Watanabe, Eiichi Tajika
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-10 (2021)
Abstract Oxygen is a potential biosignature for terrestrial Earth-like planets. The primary source of oxygen on Earth is oxygenic photosynthesis, which may be limited by the supply of riverine phosphorus. Therefore, phosphorus supply from the chemica
Externí odkaz:
https://doaj.org/article/3057a61b44ee4dbc87282a5a33837cd8
Autor:
Toshihiro Tada, Ryuji Tada, Praphas Chansom, Wickanet Songtham, Paul A. Carling, Eiichi Tajika
Publikováno v:
Progress in Earth and Planetary Science, Vol 7, Iss 1, Pp 1-15 (2020)
Abstract There are several reports of Australasian tektites found within a stratum called “laterite” layer widely distributed in Indochina. However, it has been debated whether these tektites are in situ or reworked. This uncertainty is because a
Externí odkaz:
https://doaj.org/article/f5475e032b824a17b9d3bb24e5f48755
Publikováno v:
Geobiology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5c9433b15e514033650e5b767be4a5b
https://doi.org/10.1111/gbi.12554
https://doi.org/10.1111/gbi.12554
A new Earth system model of intermediate complexity – CANOPS-GRB v1.0 – is presented for use in quantitatively assessing the dynamics and stability of atmospheric and oceanic chemistry on Earth and Earth-like planets over geologic timescales. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756acf30c046cda5374e7c2a16352c01
https://gmd.copernicus.org/articles/15/7593/2022/
https://gmd.copernicus.org/articles/15/7593/2022/
Autor:
Toshihiro Tada, Ryuji Tada, Paul A. Carling, Wickanet Songtham, Praphas Chansom, Toshihiro Kogure, Yu Chang, Eiichi Tajika
The Australasian Tektite Event, approximately 0.8 Ma, is the youngest record of a large impact event on Earth. Although it is estimated that it occurred somewhere in Indochina based on the distribution of tektites, the crater has never been located.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34b10ce321e02a3385fd385237837b9e
https://eprints.soton.ac.uk/470873/
https://eprints.soton.ac.uk/470873/
Publikováno v:
Goldschmidt2022 abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e503cefd03c943c3249926893ecd645
https://doi.org/10.46427/gold2022.12741
https://doi.org/10.46427/gold2022.12741
Publikováno v:
Goldschmidt2022 abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35f36daf60e003a8493e96c398378e87
https://doi.org/10.46427/gold2022.9256
https://doi.org/10.46427/gold2022.9256