Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world

Abstract We combine U–Pb in-situ carbonate dating, elemental and isotope constraints to calibrate the synergy of integrated mountain-basin evolution in western Gondwana. We show that deposition of the Bambuí Group coincides with closure of the Goiás-Pharusian (630–600 Ma) and Adamastor (585–530 Ma)...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Fabricio Caxito, Cristiano Lana, Robert Frei, Gabriel J. Uhlein, Alcides N. Sial, Elton L. Dantas, André G. Pinto, Filippe C. Campos, Paulo Galvão, Lucas V. Warren, Juliana Okubo, Carlos E. Ganade
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/34b267a34b9f4faa8c4825288af8dad6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:34b267a34b9f4faa8c4825288af8dad6
record_format	dspace
spelling	oai:doaj.org-article:34b267a34b9f4faa8c4825288af8dad62021-12-02T18:37:08ZGoldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world10.1038/s41598-021-99526-z2045-2322https://doaj.org/article/34b267a34b9f4faa8c4825288af8dad62021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99526-zhttps://doaj.org/toc/2045-2322Abstract We combine U–Pb in-situ carbonate dating, elemental and isotope constraints to calibrate the synergy of integrated mountain-basin evolution in western Gondwana. We show that deposition of the Bambuí Group coincides with closure of the Goiás-Pharusian (630–600 Ma) and Adamastor (585–530 Ma) oceans. Metazoans thrived for a brief moment of balanced redox and nutrient conditions. This was followed, however, by closure of the Clymene ocean (540–500 Ma), eventually landlocking the basin. This hindered seawater renewal and led to uncontrolled nutrient input, shallowing of the redoxcline and anoxic incursions, fueling positive productivity feedbacks and preventing the development of typical Ediacaran–Cambrian ecosystems. Thus, mountains provide the conditions, such as oxygen and nutrients, but may also preclude life development if basins become too restricted, characterizing a Goldilocks or optimal level effect. During the late Neoproterozoic-Cambrian fan-like transition from Rodinia to Gondwana, the newborn marginal basins of Laurentia, Baltica and Siberia remained open to the global sea, while intracontinental basins of Gondwana became progressively landlocked. The extent to which basin restriction might have affected the global carbon cycle and climate, e.g. through the input of gases such as methane that could eventually have collaborated to an early Cambrian greenhouse world, needs to be further considered.Fabricio CaxitoCristiano LanaRobert FreiGabriel J. UhleinAlcides N. SialElton L. DantasAndré G. PintoFilippe C. CamposPaulo GalvãoLucas V. WarrenJuliana OkuboCarlos E. GanadeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fabricio Caxito Cristiano Lana Robert Frei Gabriel J. Uhlein Alcides N. Sial Elton L. Dantas André G. Pinto Filippe C. Campos Paulo Galvão Lucas V. Warren Juliana Okubo Carlos E. Ganade Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
description	Abstract We combine U–Pb in-situ carbonate dating, elemental and isotope constraints to calibrate the synergy of integrated mountain-basin evolution in western Gondwana. We show that deposition of the Bambuí Group coincides with closure of the Goiás-Pharusian (630–600 Ma) and Adamastor (585–530 Ma) oceans. Metazoans thrived for a brief moment of balanced redox and nutrient conditions. This was followed, however, by closure of the Clymene ocean (540–500 Ma), eventually landlocking the basin. This hindered seawater renewal and led to uncontrolled nutrient input, shallowing of the redoxcline and anoxic incursions, fueling positive productivity feedbacks and preventing the development of typical Ediacaran–Cambrian ecosystems. Thus, mountains provide the conditions, such as oxygen and nutrients, but may also preclude life development if basins become too restricted, characterizing a Goldilocks or optimal level effect. During the late Neoproterozoic-Cambrian fan-like transition from Rodinia to Gondwana, the newborn marginal basins of Laurentia, Baltica and Siberia remained open to the global sea, while intracontinental basins of Gondwana became progressively landlocked. The extent to which basin restriction might have affected the global carbon cycle and climate, e.g. through the input of gases such as methane that could eventually have collaborated to an early Cambrian greenhouse world, needs to be further considered.
format	article
author	Fabricio Caxito Cristiano Lana Robert Frei Gabriel J. Uhlein Alcides N. Sial Elton L. Dantas André G. Pinto Filippe C. Campos Paulo Galvão Lucas V. Warren Juliana Okubo Carlos E. Ganade
author_facet	Fabricio Caxito Cristiano Lana Robert Frei Gabriel J. Uhlein Alcides N. Sial Elton L. Dantas André G. Pinto Filippe C. Campos Paulo Galvão Lucas V. Warren Juliana Okubo Carlos E. Ganade
author_sort	Fabricio Caxito
title	Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
title_short	Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
title_full	Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
title_fullStr	Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
title_full_unstemmed	Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world
title_sort	goldilocks at the dawn of complex life: mountains might have damaged ediacaran–cambrian ecosystems and prompted an early cambrian greenhouse world
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/34b267a34b9f4faa8c4825288af8dad6
work_keys_str_mv	AT fabriciocaxito goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT cristianolana goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT robertfrei goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT gabrieljuhlein goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT alcidesnsial goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT eltonldantas goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT andregpinto goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT filippeccampos goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT paulogalvao goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT lucasvwarren goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT julianaokubo goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld AT carloseganade goldilocksatthedawnofcomplexlifemountainsmighthavedamagedediacarancambrianecosystemsandpromptedanearlycambriangreenhouseworld
_version_	1718377790145822720

Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world

Ejemplares similares