Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

View all journals
Search
Log in

nature
search

Search

Advanced search

Filter By:

Journal Check one or more journals to show results from those journals only.

Scientific Reports (4)
Nature Geoscience (1)
Nature (1)

Choose more journals

Article type Check one or more article types to show results from those article types only.

Research (6)

Subject Check one or more subjects to show results from those subjects only.

Biogeochemistry
Climate sciences
Ecology
Environmental sciences
Evolution
Natural hazards
Ocean sciences
Solid Earth sciences

Date Choose a date option to show results from those dates only.

Today
Last 7 days
Last 30 days
Last 12 months
Last 2 years
Last 5 years

Custom date range

Clear all filters

Sort by:

Relevance

Date published (new to old)

Date published (old to new)

Showing 1–6 of 6 results

Advanced filters: Author: Akizumi Ishida Clear advanced filters

Evidence for biogenic graphite in early Archaean Isua metasedimentary rocks

The Archaean rocks of Isua, West Greenland, contain graphite, but its origins are debated. Geochemical and microscopic analyses suggest that the graphite was formed from biologically formed carbon that was deposited at least 3.7 billion years ago.

Yoko Ohtomo
Takeshi Kakegawa
Minik T. Rosing
Research08 Dec 2013
Nature Geoscience

Volume: 7, P: 25-28
Early trace of life from 3.95 Ga sedimentary rocks in Labrador, Canada

The authors provide evidence for the existence of life on Earth in the earliest known sedimentary rocks and suggest that the presence of organic carbon, and low stable-isotope values of graphite from sedimentary rocks in Labrador pushes back the existence of organic life to beyond 3.95 billion years.

Takayuki Tashiro
Akizumi Ishida
Tsuyoshi Komiya
Research28 Sept 2017
Nature

Volume: 549, P: 516-518
Middle Holocene daily light cycle reconstructed from the strontium/calcium ratios of a fossil giant clam shell

Masako Hori
Yuji Sano
Tsuyoshi Watanabe
ResearchOpen Access04 Mar 2015
Scientific Reports

Volume: 5, P: 1-5
Ultrahigh-resolution imaging of biogenic phosphorus and molybdenum in palaeoproterozoic gunflint microfossils

Kohei Sasaki
Akizumi Ishida
Yuji Sano
ResearchOpen Access20 Sept 2024
Scientific Reports

Volume: 14, P: 1-12
Influence of normal tide and the Great Tsunami as recorded through hourly-resolution micro-analysis of a mussel shell

Yuji Sano
Tomoyo Okumura
Kotaro Shirai
ResearchOpen Access06 Oct 2021
Scientific Reports

Volume: 11, P: 1-12
Helium and methane sources and fluxes of shallow submarine hydrothermal plumes near the Tokara Islands, Southern Japan

Hsin-Yi Wen
Yuji Sano
Tsanyao F. Yang
ResearchOpen Access27 Sept 2016
Scientific Reports

Volume: 6, P: 1-9