地質(zhì)學(xué)家發(fā)現(xiàn)了美國和加拿大東海岸以外的幾個(gè)地點(diǎn)可能成為大型,、高效而且容易獲取的碳封存貯藏庫,。
Dennis Kent及其同事發(fā)現(xiàn)了美國東海岸附近海底中央大西洋巖漿區(qū)的幾個(gè)區(qū)域可能安全地封存大量的二氧化碳。這些2億年歷史的巖石是由火山玄武巖組成的,，它能夠吸收二氧化碳,，并形成持久的礦物質(zhì)。這組作者對(duì)這個(gè)沿著北美海岸線延伸的區(qū)域的分析顯示了三個(gè)主要的地點(diǎn)：一個(gè)在佐治亞州海岸以外,，另外兩個(gè)靠近紐約市。這些玄武巖貯藏庫都靠近大型工業(yè)化都市中心,，而且被掩埋在了厚厚的沉積物之下,。
這組作者說，這些地層對(duì)來自工廠和發(fā)電廠的二氧化碳具有很大的貯藏能力,，它們穩(wěn)定,，而且不太可能泄漏,。這組科學(xué)家提出，全世界類似的陸上地層可以用于測(cè)試,，而當(dāng)碳封存技術(shù)可行之后,，在海底的更大的地層可以用于碳封存。（生物谷Bioon.com）
生物谷推薦原始出處：
PNAS January 4, 2010, doi: 10.1073/pnas.0913721107
Potential on-shore and off-shore reservoirs for CO2 sequestration in Central Atlantic magmatic province basalts
David S. Goldberga, Dennis V. Kenta,b,1 and Paul E. Olsena
aLamont-Doherty Earth Observatory, 61 Route 9W, Palisades, NY 10964; and
bEarth and Planetary Sciences, Rutgers University, Piscataway, NJ 08854.
Identifying locations for secure sequestration of CO2 in geological formations is one of our most pressing global scientific problems. Injection into basalt formations provides unique and significant advantages over other potential geological storage options, including large potential storage volumes and permanent fixation of carbon by mineralization. The Central Atlantic Magmatic Province basalt flows along the eastern seaboard of the United States may provide large and secure storage reservoirs both onshore and offshore. Sites in the South Georgia basin, the New York Bight basin, and the Sandy Hook basin offer promising basalt-hosted reservoirs with considerable potential for CO2 sequestration due to their proximity to major metropolitan centers, and thus to large industrial sources for CO2. Onshore sites are suggested for cost-effective characterization studies of these reservoirs, although offshore sites may offer larger potential capacity and additional long-term advantages for safe and secure CO2 sequestration.
