Assessment of Chaves Low-Temperature CO<sub>2</sub>-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach

<div>CO<sub>2</sub>/<sup>3</sup>He ratio <i>vs. δ</i><sup>13</sup>C of the gas phase within the typical MORB formations, the fields were defined based on [<a href="/journals/geofluids/2019/1379093/#B104">104</a>, <a href="/journals/geofluids/2019/1379093/#B107">107</a>, <a href="/journals/geofluids/2019/1379093/#B108">108</a>]. The CO<sub>2</sub>/<sup>3</sup>He ratios for crustal and MORB fluids are from [<a href="/journals/geofluids/2019/1379093/#B107">107</a>, <a href="/journals/geofluids/2019/1379093/#B109">109</a>]. The symbols stand for (<span class="nowrap"><svg height="9.69047pt" id="M76" style="vertical-align:-0.3499298pt" version="1.1" viewbox="-0.0498162 -9.34054 10.8779 9.69047" width="10.8779pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M799 12L418 655H408L27 12L34 0H792L799 12ZM711 50H115L413 553L711 50Z"></path></g></svg>)</span> Chaves, (•) Vidago, and (■) Pedras Salgadas. Adapted from [<a href="/journals/geofluids/2019/1379093/#B81">81</a>].</div>

Geofluids

fig7

Figure 7

Figure 7: Assessment of Chaves Low-Temperature CO<sub>2</sub>-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach 

Geofluids

Assessment of Chaves Low-Temperature CO2-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach

Figure 7

Assessment of Chaves Low-Temperature CO₂-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach