**6. Conclusions**

Study of the cobble-boulder deposits at Playa El Confital offers insights based on mathematical equations for estimation of Late Pleistocene wave heights from super-storms in the same region:


**Author Contributions:** M.E.J. initiated the project as a contribution to the Special Issue in the Journal of Marine Sciences and Engineering devoted to "Evaluation of Boulder Deposits Linked to Late Neogene Hurricane Events." I.G. and N.S. collected the extensive raw data on bolder dimensions at the study site. All co-authors contributed various parts of the text, with I.G. and N.S. contributing material on geologic background and characteristics of the conglomerate deposit. E.M.-G. was responsible for the paleontological and paleoecological description. M.E.J. and S.P.Á. compiled the statistics on wave heights. C.R. and C.S.M. researched and summarized existing historical records on the region's major storms. J.V. contributed the summary on geoheritage. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received funding from the Canarian Agency for Research, Innovation, and Society of Information (ACIISI) under the Government of the Canary Islands through the project ProID2017010159. C.S. Melo is the recipient of a PhD scholarship M.3a/F/100/2015 from FRCT/Açores 2020 from the Regional Fund for Science and Technology (FRCT) and benefitted from S.P.Á. "Projecto Exploratório" IF/00465 from the Foundation for Science and Technology (FCT). He also expresses appreciation for help from the FEDER through the Operational Program for Competitiveness Factors–COMPETE; by FCT under projects UID/BIA/50027/2013 and POCI-01-01- 0145-FEDER-006821; DRCT1.1 project a/005/Function-C-/2016 (CIBIO-A) of the FRCT.

**Acknowledgments:** To be added following the review process.

**Conflicts of Interest:** The authors declare no conflict of interest.

#### **Appendix A**

**Table A1.** Quantification of clast size, volume, and estimated weight from location 1 at the east end of Playa El Confital. The density of basalt at 2.84 g/cm2 is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.



**Table A2.** Quantification of clast size, volume, and estimated weight from location 2 at the east end of Playa El Confital. The density of basalt at 2.84 g/cm2 is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.


**Table A3.** Quantification of clast size, volume, and estimated weight from location 3 at the east end of Playa El Confital. The density of basalt at 2.84 g/cm2 is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.


**Table A4.** Quantification of clast size, volume, and estimated weight from location 4 on at the west end of Playa El Confital. The density of basalt at 2.84 g/cm2 is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.


**Table A5.** Quantification of clast size, volume, and estimated weight from location 5 on at the west end of Playa El Confital. The density of basalt at 2.84 g/cm2 is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.


**Table A6.** Quantification of clast size, volume, and estimated weight from location 6 on at the west end of Playa El Confital. The density of basal at 2.84 g/cm<sup>2</sup> is applied uniformly in order to calculate wave height for each boulder on the basis of competing equations. Abbreviation: EWH = estimated wave height.

#### **References**

