Long-term hydrogeochemical records in the oceanic basement and forearc prism at the Costa Rica subduction zone

This study presents a hydrogeochemical analysis of spring responses (2013-2017) in the tropical mountainous region of the Central Valley of Costa Rica. The isotopic distribution of δ18O and δ2H in rainfall resulted in a highly significant meteoric water line: δ2H = 7.93×δ18O + 10.37 (r2=0.97). Rainfall isotope composition exhibited a strong dependent seasonality. The isotopic variation (δ18O) of two springs within the Barva aquifer was simulated using the FlowPC program to determine mean transit times (MTTs). Exponential-piston and dispersion distribution functions provided the best-fit to the observed isotopic composition at Flores and Sacramento springs, respectively. MTTs corresponded to 1.23±0.03 (Sacramento) and 1.42±0.04 (Flores) years. The greater MTT was represented by a homogeneous geochemical composition at Flores, whereas the smaller MTT at Sacramento is reflected in a more variable geochemical response. The results may be used to enhance modelling efforts in central Costa Rica, whereby scarcity of long-term data limits water resources management plans.

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Long-Term Interactions Between Intermediate Depth and Shallow Seismicity in North Chile Subduction Zone

Geophysical Research Letters ◽

10.1002/2017gl075029 ◽

2017 ◽

Vol 44 (18) ◽

pp. 9283-9292 ◽

Cited By ~ 9

Author(s):

Jorge Jara ◽

Anne Socquet ◽

David Marsan ◽

Michel Bouchon

Keyword(s):

Subduction Zone ◽

Intermediate Depth

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Inferred pore pressures at the Costa Rica subduction zone: implications for dewatering processes

Earth and Planetary Science Letters ◽

10.1016/s0012-821x(00)00048-0 ◽

2000 ◽

Vol 177 (3-4) ◽

pp. 193-207 ◽

Cited By ~ 77

Author(s):

Demian M. Saffer ◽

Eli A. Silver ◽

Andrew T. Fisher ◽

Harold Tobin ◽

Kate Moran

Keyword(s):

Costa Rica ◽

Subduction Zone ◽

Pore Pressures

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Calcareous Nannofossil Biostratigraphy: Ocean Drilling Program Leg 205, Costa Rica Subduction Zone

10.2973/odp.proc.sr.205.211.2006 ◽

2006 ◽

Cited By ~ 1

Author(s):

J.P. Muza

Keyword(s):

Costa Rica ◽

Subduction Zone ◽

Calcareous Nannofossil ◽

Ocean Drilling Program ◽

Ocean Drilling ◽

Calcareous Nannofossil Biostratigraphy

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State-Owned Banks and Development

Handbook of Research on Comparative Economic Development Perspectives on Europe and the MENA Region - Advances in Finance, Accounting, and Economics ◽

10.4018/978-1-4666-9548-1.ch004 ◽

2016 ◽

pp. 52-73 ◽

Cited By ~ 1

Author(s):

Thomas Marois

Keyword(s):

South Africa ◽

Costa Rica ◽

Case Studies ◽

Public Services ◽

Viable Option ◽

Public Banks ◽

Neoliberal Restructuring ◽

Crucial Part ◽

Improve State

Thirty years of neoliberal restructuring have side-lined alternative financing practices, and propagated mainstream myths about state-owned banks. This chapter examines these neoliberal claims, arguing instead that state-owned banks can remain a crucial part of progressive, sustainable and democratic strategies for investments in long-term development and infrastructure. Drawing on past and present case studies, as well as the theoretical literature on finance, the chapter points to the potential to revive – and improve – state-owned banking as a viable option for financing public services and development. To this end the chapter dispels nine popular neoliberal claims about state-owned banks while discussing how state-owned banks have undergone neoliberal restructuring processes such as marketization and corporatization in ways that nonetheless challenge their status as ‘public' banks. To illustrate, the chapter looks at imperfect, but telling or inspiring, examples from Brazil, China, Costa Rica, India, South Africa, Turkey and Venezuela, among others.

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