当前位置: X-MOL 学术Lethaia › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Heliolitid corals and their competitors: a case study from the Wellin patch reefs, Middle Devonian, Belgium
Lethaia ( IF 1.5 ) Pub Date : 2021-05-10 , DOI: 10.1111/let.12421
Jan J. Król 1 , Julien Denayer 2 , Paweł Wolniewicz 1 , Mikołaj K. Zapalski 3
Affiliation  

Wellin patch reefs are small Upper Eifelian build?ups within the fine?grained argillaceous limestone of the Hanonet Formation. Whereas the reefs themselves are not well exposed, their fossil assemblage is accessible in the hills near the town of Wellin, approximately 40\xA0km SE of Dinant in Belgium. It is especially rich in massive stromatoporoids, heliolitids and other tabulate corals. They exhibit predominantly domical and bulbous morphologies. This paper focuses primarily on the palaeoautoecology of the heliolitid corals and their relationships with other organisms. Cases of mutual overgrowth between heliolitids, other corals and stromatoporids suggest a high degree of competition for space on the reefs, possibly related to the scarcity of hard substrates. Coral and stromatoporoid growth forms, as well as the prevalence of micritic matrix, point to a relatively low energy environment. However, abundant growth interruption surfaces, sediment intercalations and rejuvenations of corals suggest episodically increased hydrodynamic regime and sediment supply. It is inferred that the patch reefs developed in a relatively shallow environment, where the reefal assemblage was regularly affected by storms. Heliolitids exhibited high sediment tolerance and relied on passive sediment removal for survival. They also could regenerate effectively and commonly overgrew their epibionts, after the colony’s growth was hampered by the sediment. This is recorded in extremely abundant growth interruption surfaces, which allow the analysis of the impact of sediment influxes on the heliolitid corals.

中文翻译:

Heliolitid 珊瑚及其竞争对手:来自比利时中泥盆纪 Wellin 斑块珊瑚礁的案例研究

Wellin 斑块礁是在 Hanonet 组细粒泥质石灰岩中的小型上 Eifelian 堆积物。虽然珊瑚礁本身并没有很好地暴露在外,但它们的化石组合可以在比利时迪南东南约 40\xA0km 的威林镇附近的山丘上找到。它特别富含大量的层孔虫、日光石和其他板状珊瑚。它们主要表现出球形和球状形态。本文主要关注日光珊瑚的古自生态学及其与其他生物的关系。heliolitids、其他珊瑚和层孔虫之间相互过度生长的情况表明,珊瑚礁上的空间竞争激烈,可能与硬质基质的稀缺有关。珊瑚和层孔虫的生长形式,以及泥晶基质的普遍存在,指向相对较低的能源环境。然而,丰富的生长中断表面、沉积物嵌入和珊瑚的再生表明水动力状况和沉积物供应偶尔增加。推测斑块礁发育于相对较浅的环境中,礁群经常受到风暴的影响。Heliolitids 表现出很高的沉积物耐受性,并且依靠被动沉积物去除来生存。在殖民地的生长受到沉积物的阻碍后,它们也可以有效地再生,并且通常会过度生长。这记录在极其丰富的生长中断表面中,从而可以分析沉积物流入对日光石珊瑚的影响。珊瑚的沉积物嵌入和再生表明水动力状况和沉积物供应的增加。推测斑块礁发育于相对较浅的环境中,礁群经常受到风暴的影响。Heliolitids 表现出很高的沉积物耐受性,并且依靠被动沉积物去除来生存。在殖民地的生长受到沉积物的阻碍后,它们也可以有效地再生,并且通常会过度生长。这记录在极其丰富的生长中断表面中,从而可以分析沉积物流入对日光石珊瑚的影响。珊瑚的沉积物嵌入和再生表明水动力状况和沉积物供应的增加。推测斑块礁发育于相对较浅的环境中,礁群经常受到风暴的影响。Heliolitids 表现出很高的沉积物耐受性,并且依靠被动沉积物去除来生存。在殖民地的生长受到沉积物的阻碍后,它们也可以有效地再生,并且通常会过度生长。这记录在极其丰富的生长中断表面中,从而可以分析沉积物流入对日光石珊瑚的影响。礁群经常受到风暴的影响。Heliolitids 表现出很高的沉积物耐受性,并且依靠被动沉积物去除来生存。在殖民地的生长受到沉积物的阻碍后,它们也可以有效地再生,并且通常会过度生长。这记录在极其丰富的生长中断表面中,从而可以分析沉积物流入对日光石珊瑚的影响。礁群经常受到风暴的影响。Heliolitids 表现出很高的沉积物耐受性,并且依靠被动沉积物去除来生存。在殖民地的生长受到沉积物的阻碍后,它们也可以有效地再生,并且通常会过度生长。这记录在极其丰富的生长中断表面中,从而可以分析沉积物流入对日光石珊瑚的影响。
更新日期:2021-05-10
down
wechat
bug