In Search of the Primeval Oceanic Crust

从地下室复合体收集的燧石和石灰石样品将在实验室进行处理。从岩石基质中解放出来的放射虫将用我们的扫描电子显微镜进行鉴定。遵循之前在其他地下室综合体中工作的生产形式，结果可分为两个重要部分。首先，放射虫动物群可以更好地确定这些基底复合体的年代。仔细的野外工作允许对火成岩基底和该基底材料中任何随后的内含物进行选择性测年和区分。第二，放射虫动物群的古地理意义将进一步约束加勒比板块古地理发展模式。这项研究填补了地球历史知识的空白，特别是提供了关于加勒比板块各种碎片的年龄和起源的进一步细节。

Pessagno 9418194 Chert and limestone samples collected from the basement complexes will be processed in the laboratory. Radiolarians liberated from the rock matrix will be identified with our scanning electron microscope. Following the productive format of previous work in other basement complexes, results are divisible into two important components. First, radiolarian faunas will allow better dating of these basement complexes. Careful field work permits selective dating and discrimination of both the igneous basement and any subsequent inclusions into this basement material. Second, the paleobiogeographical significance of radiolarian faunas will further constrain models of the paleogeographic development of the Caribbean Plate. The research fills in gaps in the knowledge of Earth history especially providing further details of the age and origin of various fragments of the Caribbean Plate.