A global framework for the Earth: putting geological sciences in context

We propose a global framework for the Earth system to facilitate communication between the geoscience
community, the public and policy makers. Geoscience research aims to understand the history and evolution of
the Earth system. This combines the non-living and living parts of the Earth, especially through interactions of
the lithosphere, biosphere and atmosphere as well as the other parts of the system, such as the asthenosphere,
core and extraterrestrial influences. Such research considers a system that spans scales from microscopic (micrometer
scale) to megascopic (many 1000 s of km scale), and from milliseconds to millions of years. To connect
different parts of this immense system, we habitually use a wide range of ad hoc geological frameworks, systems
and geological environment models, where different processes and features operate and combine. In consequence,
one way to judge the significance of our work, and to increase its value, is to assess how the elements
studied are integrated within the whole Earth system. This allows us to see what implications any study has for
this greater Earth system. To do this successfully, our research needs a standard global framework to assess a
study's relevance. However, such a global framework does not formally exist, and so this article looks at existing
examples and proposes one that can systematically place research into a global geological context. This proposed
framework has the advantage of being useful for communicating geological processes to other disciplines, and
can be used for any type of Earth (or planetary) environment. This framework is a fundamental tool for
geoscience communication and for outreach, especially through geological heritage (geoheritage). Geoheritage
concerns the valuing and protection of geoscience and geological sites, and is a vital tool for communicating
geoscience. It can be used to communicate our knowledge of global change, providing, through landscapes and
outcrops, a story that renders the concepts and advances of geoscience accessible. Like our basic research, the
concept of geoheritage evolves as our understanding of the Earth progresses, and these dual changes can be
explained with the global framework. Geoheritage is a global activity and it needs a global framework to put
sites into context. A revision of the UNESCO geological thematic studies was called for by the World Heritage
Committee in 2014 (decision: 38 COM 8B.11), and this can be done with the input from the full geoscience
community using this global geological framework.
Thus, for research, geoscience policy and for geoheritage, a global framework is now needed. The proposed
framework can place any site in its geological environment, related to its lithospheric plate tectonic setting andits history. The framework has a solid-earth bias (lithosphere), but includes all other spheres, such as the biosphere
and anthropogenic activity. Extraterrestrial influences, like solar variations and metorite impacts are
included. The framework is phenomenological, due to the necessity of grouping the features that we see, but
these phenomena provide evidence of processes that we cannot see. The basic format is a table, a sketch of the
Earth and a system diagram, three complementary and most powerful ways of depicting a system. A timeline, or
stratigraphic column can be included, to show the evolution of geological history, and the table can be used as a
‘game board’ where one site migrates across from one set of conditions to another over time. The global framework
allows any research site, area or subject to be set in the Earth's system, in a way that gives it context,
allows comparisons and provides significance. We suggest that it can be a template for an internationally accepted
version used to consolidate the necessary geoscience – geoheritage link and promote outreach.

Publication year:2017

BOF-keylabel:yes

BOF-publication weight:6

CSS-citation score:2

Authors:International

Authors from:Higher Education

Accessibility:Closed